Calculadora de amortização
Amortization Calculator
Calcula parcelas mensais fixas e divide cada pagamento em principal e juros ao longo do prazo.
Resultados
Valor do empréstimo
$200,000.00
Parcela mensal
$1,199.10
Juros totais
$231,676.38
Total pago
$431,676.38
Gráfico de amortização
Saldo restanteJuros acumulados
Cronograma mês a mês
| Mês | Juros pagos | Principal pago | Saldo restante |
|---|---|---|---|
| 0 | $0.00 | $0.00 | $200,000.00 |
| 1 | $1,000.00 | $199.10 | $199,800.90 |
| 2 | $999.00 | $200.10 | $199,600.80 |
| 3 | $998.00 | $201.10 | $199,399.71 |
| 4 | $997.00 | $202.10 | $199,197.60 |
| 5 | $995.99 | $203.11 | $198,994.49 |
| 6 | $994.97 | $204.13 | $198,790.36 |
| 7 | $993.95 | $205.15 | $198,585.21 |
| 8 | $992.93 | $206.17 | $198,379.04 |
| 9 | $991.90 | $207.21 | $198,171.83 |
| 10 | $990.86 | $208.24 | $197,963.59 |
| 11 | $989.82 | $209.28 | $197,754.31 |
| 12 | $988.77 | $210.33 | $197,543.98 |
| 13 | $987.72 | $211.38 | $197,332.60 |
| 14 | $986.66 | $212.44 | $197,120.16 |
| 15 | $985.60 | $213.50 | $196,906.66 |
| 16 | $984.53 | $214.57 | $196,692.09 |
| 17 | $983.46 | $215.64 | $196,476.45 |
| 18 | $982.38 | $216.72 | $196,259.73 |
| 19 | $981.30 | $217.80 | $196,041.93 |
| 20 | $980.21 | $218.89 | $195,823.04 |
| 21 | $979.12 | $219.99 | $195,603.05 |
| 22 | $978.02 | $221.09 | $195,381.96 |
| 23 | $976.91 | $222.19 | $195,159.77 |
| 24 | $975.80 | $223.30 | $194,936.47 |
| 25 | $974.68 | $224.42 | $194,712.05 |
| 26 | $973.56 | $225.54 | $194,486.51 |
| 27 | $972.43 | $226.67 | $194,259.84 |
| 28 | $971.30 | $227.80 | $194,032.04 |
| 29 | $970.16 | $228.94 | $193,803.10 |
| 30 | $969.02 | $230.09 | $193,573.01 |
| 31 | $967.87 | $231.24 | $193,341.78 |
| 32 | $966.71 | $232.39 | $193,109.39 |
| 33 | $965.55 | $233.55 | $192,875.83 |
| 34 | $964.38 | $234.72 | $192,641.11 |
| 35 | $963.21 | $235.90 | $192,405.22 |
| 36 | $962.03 | $237.07 | $192,168.14 |
| 37 | $960.84 | $238.26 | $191,929.88 |
| 38 | $959.65 | $239.45 | $191,690.43 |
| 39 | $958.45 | $240.65 | $191,449.78 |
| 40 | $957.25 | $241.85 | $191,207.93 |
| 41 | $956.04 | $243.06 | $190,964.87 |
| 42 | $954.82 | $244.28 | $190,720.59 |
| 43 | $953.60 | $245.50 | $190,475.09 |
| 44 | $952.38 | $246.73 | $190,228.37 |
| 45 | $951.14 | $247.96 | $189,980.41 |
| 46 | $949.90 | $249.20 | $189,731.21 |
| 47 | $948.66 | $250.45 | $189,480.76 |
| 48 | $947.40 | $251.70 | $189,229.06 |
| 49 | $946.15 | $252.96 | $188,976.11 |
| 50 | $944.88 | $254.22 | $188,721.89 |
| 51 | $943.61 | $255.49 | $188,466.40 |
| 52 | $942.33 | $256.77 | $188,209.63 |
| 53 | $941.05 | $258.05 | $187,951.57 |
| 54 | $939.76 | $259.34 | $187,692.23 |
| 55 | $938.46 | $260.64 | $187,431.59 |
| 56 | $937.16 | $261.94 | $187,169.65 |
| 57 | $935.85 | $263.25 | $186,906.40 |
| 58 | $934.53 | $264.57 | $186,641.83 |
| 59 | $933.21 | $265.89 | $186,375.94 |
| 60 | $931.88 | $267.22 | $186,108.71 |
| 61 | $930.54 | $268.56 | $185,840.16 |
| 62 | $929.20 | $269.90 | $185,570.26 |
| 63 | $927.85 | $271.25 | $185,299.01 |
| 64 | $926.50 | $272.61 | $185,026.40 |
| 65 | $925.13 | $273.97 | $184,752.43 |
| 66 | $923.76 | $275.34 | $184,477.09 |
| 67 | $922.39 | $276.72 | $184,200.38 |
| 68 | $921.00 | $278.10 | $183,922.28 |
| 69 | $919.61 | $279.49 | $183,642.79 |
| 70 | $918.21 | $280.89 | $183,361.90 |
| 71 | $916.81 | $282.29 | $183,079.61 |
| 72 | $915.40 | $283.70 | $182,795.91 |
| 73 | $913.98 | $285.12 | $182,510.78 |
| 74 | $912.55 | $286.55 | $182,224.24 |
| 75 | $911.12 | $287.98 | $181,936.26 |
| 76 | $909.68 | $289.42 | $181,646.84 |
| 77 | $908.23 | $290.87 | $181,355.97 |
| 78 | $906.78 | $292.32 | $181,063.65 |
| 79 | $905.32 | $293.78 | $180,769.87 |
| 80 | $903.85 | $295.25 | $180,474.62 |
| 81 | $902.37 | $296.73 | $180,177.89 |
| 82 | $900.89 | $298.21 | $179,879.68 |
| 83 | $899.40 | $299.70 | $179,579.97 |
| 84 | $897.90 | $301.20 | $179,278.77 |
| 85 | $896.39 | $302.71 | $178,976.06 |
| 86 | $894.88 | $304.22 | $178,671.84 |
| 87 | $893.36 | $305.74 | $178,366.10 |
| 88 | $891.83 | $307.27 | $178,058.83 |
| 89 | $890.29 | $308.81 | $177,750.02 |
| 90 | $888.75 | $310.35 | $177,439.67 |
| 91 | $887.20 | $311.90 | $177,127.77 |
| 92 | $885.64 | $313.46 | $176,814.31 |
| 93 | $884.07 | $315.03 | $176,499.28 |
| 94 | $882.50 | $316.60 | $176,182.67 |
| 95 | $880.91 | $318.19 | $175,864.49 |
| 96 | $879.32 | $319.78 | $175,544.71 |
| 97 | $877.72 | $321.38 | $175,223.33 |
| 98 | $876.12 | $322.98 | $174,900.35 |
| 99 | $874.50 | $324.60 | $174,575.75 |
| 100 | $872.88 | $326.22 | $174,249.52 |
| 101 | $871.25 | $327.85 | $173,921.67 |
| 102 | $869.61 | $329.49 | $173,592.18 |
| 103 | $867.96 | $331.14 | $173,261.04 |
| 104 | $866.31 | $332.80 | $172,928.24 |
| 105 | $864.64 | $334.46 | $172,593.78 |
| 106 | $862.97 | $336.13 | $172,257.65 |
| 107 | $861.29 | $337.81 | $171,919.84 |
| 108 | $859.60 | $339.50 | $171,580.34 |
| 109 | $857.90 | $341.20 | $171,239.14 |
| 110 | $856.20 | $342.91 | $170,896.23 |
| 111 | $854.48 | $344.62 | $170,551.61 |
| 112 | $852.76 | $346.34 | $170,205.27 |
| 113 | $851.03 | $348.07 | $169,857.19 |
| 114 | $849.29 | $349.82 | $169,507.38 |
| 115 | $847.54 | $351.56 | $169,155.81 |
| 116 | $845.78 | $353.32 | $168,802.49 |
| 117 | $844.01 | $355.09 | $168,447.40 |
| 118 | $842.24 | $356.86 | $168,090.54 |
| 119 | $840.45 | $358.65 | $167,731.89 |
| 120 | $838.66 | $360.44 | $167,371.45 |
| 121 | $836.86 | $362.24 | $167,009.21 |
| 122 | $835.05 | $364.06 | $166,645.15 |
| 123 | $833.23 | $365.88 | $166,279.28 |
| 124 | $831.40 | $367.70 | $165,911.57 |
| 125 | $829.56 | $369.54 | $165,542.03 |
| 126 | $827.71 | $371.39 | $165,170.64 |
| 127 | $825.85 | $373.25 | $164,797.39 |
| 128 | $823.99 | $375.11 | $164,422.28 |
| 129 | $822.11 | $376.99 | $164,045.29 |
| 130 | $820.23 | $378.87 | $163,666.41 |
| 131 | $818.33 | $380.77 | $163,285.64 |
| 132 | $816.43 | $382.67 | $162,902.97 |
| 133 | $814.51 | $384.59 | $162,518.38 |
| 134 | $812.59 | $386.51 | $162,131.87 |
| 135 | $810.66 | $388.44 | $161,743.43 |
| 136 | $808.72 | $390.38 | $161,353.05 |
| 137 | $806.77 | $392.34 | $160,960.71 |
| 138 | $804.80 | $394.30 | $160,566.41 |
| 139 | $802.83 | $396.27 | $160,170.15 |
| 140 | $800.85 | $398.25 | $159,771.90 |
| 141 | $798.86 | $400.24 | $159,371.65 |
| 142 | $796.86 | $402.24 | $158,969.41 |
| 143 | $794.85 | $404.25 | $158,565.16 |
| 144 | $792.83 | $406.28 | $158,158.88 |
| 145 | $790.79 | $408.31 | $157,750.58 |
| 146 | $788.75 | $410.35 | $157,340.23 |
| 147 | $786.70 | $412.40 | $156,927.83 |
| 148 | $784.64 | $414.46 | $156,513.37 |
| 149 | $782.57 | $416.53 | $156,096.83 |
| 150 | $780.48 | $418.62 | $155,678.21 |
| 151 | $778.39 | $420.71 | $155,257.50 |
| 152 | $776.29 | $422.81 | $154,834.69 |
| 153 | $774.17 | $424.93 | $154,409.76 |
| 154 | $772.05 | $427.05 | $153,982.71 |
| 155 | $769.91 | $429.19 | $153,553.52 |
| 156 | $767.77 | $431.33 | $153,122.19 |
| 157 | $765.61 | $433.49 | $152,688.70 |
| 158 | $763.44 | $435.66 | $152,253.04 |
| 159 | $761.27 | $437.84 | $151,815.21 |
| 160 | $759.08 | $440.03 | $151,375.18 |
| 161 | $756.88 | $442.23 | $150,932.96 |
| 162 | $754.66 | $444.44 | $150,488.52 |
| 163 | $752.44 | $446.66 | $150,041.86 |
| 164 | $750.21 | $448.89 | $149,592.97 |
| 165 | $747.96 | $451.14 | $149,141.83 |
| 166 | $745.71 | $453.39 | $148,688.44 |
| 167 | $743.44 | $455.66 | $148,232.78 |
| 168 | $741.16 | $457.94 | $147,774.85 |
| 169 | $738.87 | $460.23 | $147,314.62 |
| 170 | $736.57 | $462.53 | $146,852.09 |
| 171 | $734.26 | $464.84 | $146,387.25 |
| 172 | $731.94 | $467.16 | $145,920.09 |
| 173 | $729.60 | $469.50 | $145,450.58 |
| 174 | $727.25 | $471.85 | $144,978.74 |
| 175 | $724.89 | $474.21 | $144,504.53 |
| 176 | $722.52 | $476.58 | $144,027.95 |
| 177 | $720.14 | $478.96 | $143,548.99 |
| 178 | $717.74 | $481.36 | $143,067.63 |
| 179 | $715.34 | $483.76 | $142,583.87 |
| 180 | $712.92 | $486.18 | $142,097.69 |
| 181 | $710.49 | $488.61 | $141,609.08 |
| 182 | $708.05 | $491.06 | $141,118.02 |
| 183 | $705.59 | $493.51 | $140,624.51 |
| 184 | $703.12 | $495.98 | $140,128.53 |
| 185 | $700.64 | $498.46 | $139,630.07 |
| 186 | $698.15 | $500.95 | $139,129.12 |
| 187 | $695.65 | $503.46 | $138,625.67 |
| 188 | $693.13 | $505.97 | $138,119.69 |
| 189 | $690.60 | $508.50 | $137,611.19 |
| 190 | $688.06 | $511.05 | $137,100.15 |
| 191 | $685.50 | $513.60 | $136,586.55 |
| 192 | $682.93 | $516.17 | $136,070.38 |
| 193 | $680.35 | $518.75 | $135,551.63 |
| 194 | $677.76 | $521.34 | $135,030.29 |
| 195 | $675.15 | $523.95 | $134,506.34 |
| 196 | $672.53 | $526.57 | $133,979.77 |
| 197 | $669.90 | $529.20 | $133,450.56 |
| 198 | $667.25 | $531.85 | $132,918.72 |
| 199 | $664.59 | $534.51 | $132,384.21 |
| 200 | $661.92 | $537.18 | $131,847.03 |
| 201 | $659.24 | $539.87 | $131,307.16 |
| 202 | $656.54 | $542.57 | $130,764.60 |
| 203 | $653.82 | $545.28 | $130,219.32 |
| 204 | $651.10 | $548.00 | $129,671.31 |
| 205 | $648.36 | $550.74 | $129,120.57 |
| 206 | $645.60 | $553.50 | $128,567.07 |
| 207 | $642.84 | $556.27 | $128,010.81 |
| 208 | $640.05 | $559.05 | $127,451.76 |
| 209 | $637.26 | $561.84 | $126,889.92 |
| 210 | $634.45 | $564.65 | $126,325.27 |
| 211 | $631.63 | $567.47 | $125,757.79 |
| 212 | $628.79 | $570.31 | $125,187.48 |
| 213 | $625.94 | $573.16 | $124,614.32 |
| 214 | $623.07 | $576.03 | $124,038.29 |
| 215 | $620.19 | $578.91 | $123,459.38 |
| 216 | $617.30 | $581.80 | $122,877.57 |
| 217 | $614.39 | $584.71 | $122,292.86 |
| 218 | $611.46 | $587.64 | $121,705.22 |
| 219 | $608.53 | $590.57 | $121,114.65 |
| 220 | $605.57 | $593.53 | $120,521.12 |
| 221 | $602.61 | $596.50 | $119,924.62 |
| 222 | $599.62 | $599.48 | $119,325.15 |
| 223 | $596.63 | $602.48 | $118,722.67 |
| 224 | $593.61 | $605.49 | $118,117.18 |
| 225 | $590.59 | $608.52 | $117,508.67 |
| 226 | $587.54 | $611.56 | $116,897.11 |
| 227 | $584.49 | $614.62 | $116,282.49 |
| 228 | $581.41 | $617.69 | $115,664.81 |
| 229 | $578.32 | $620.78 | $115,044.03 |
| 230 | $575.22 | $623.88 | $114,420.15 |
| 231 | $572.10 | $627.00 | $113,793.15 |
| 232 | $568.97 | $630.14 | $113,163.01 |
| 233 | $565.82 | $633.29 | $112,529.73 |
| 234 | $562.65 | $636.45 | $111,893.27 |
| 235 | $559.47 | $639.63 | $111,253.64 |
| 236 | $556.27 | $642.83 | $110,610.81 |
| 237 | $553.05 | $646.05 | $109,964.76 |
| 238 | $549.82 | $649.28 | $109,315.48 |
| 239 | $546.58 | $652.52 | $108,662.96 |
| 240 | $543.31 | $655.79 | $108,007.17 |
| 241 | $540.04 | $659.07 | $107,348.11 |
| 242 | $536.74 | $662.36 | $106,685.75 |
| 243 | $533.43 | $665.67 | $106,020.07 |
| 244 | $530.10 | $669.00 | $105,351.07 |
| 245 | $526.76 | $672.35 | $104,678.73 |
| 246 | $523.39 | $675.71 | $104,003.02 |
| 247 | $520.02 | $679.09 | $103,323.93 |
| 248 | $516.62 | $682.48 | $102,641.45 |
| 249 | $513.21 | $685.89 | $101,955.56 |
| 250 | $509.78 | $689.32 | $101,266.24 |
| 251 | $506.33 | $692.77 | $100,573.47 |
| 252 | $502.87 | $696.23 | $99,877.23 |
| 253 | $499.39 | $699.71 | $99,177.52 |
| 254 | $495.89 | $703.21 | $98,474.30 |
| 255 | $492.37 | $706.73 | $97,767.57 |
| 256 | $488.84 | $710.26 | $97,057.31 |
| 257 | $485.29 | $713.81 | $96,343.50 |
| 258 | $481.72 | $717.38 | $95,626.11 |
| 259 | $478.13 | $720.97 | $94,905.14 |
| 260 | $474.53 | $724.58 | $94,180.57 |
| 261 | $470.90 | $728.20 | $93,452.37 |
| 262 | $467.26 | $731.84 | $92,720.53 |
| 263 | $463.60 | $735.50 | $91,985.03 |
| 264 | $459.93 | $739.18 | $91,245.86 |
| 265 | $456.23 | $742.87 | $90,502.98 |
| 266 | $452.51 | $746.59 | $89,756.40 |
| 267 | $448.78 | $750.32 | $89,006.08 |
| 268 | $445.03 | $754.07 | $88,252.01 |
| 269 | $441.26 | $757.84 | $87,494.17 |
| 270 | $437.47 | $761.63 | $86,732.54 |
| 271 | $433.66 | $765.44 | $85,967.10 |
| 272 | $429.84 | $769.27 | $85,197.83 |
| 273 | $425.99 | $773.11 | $84,424.72 |
| 274 | $422.12 | $776.98 | $83,647.74 |
| 275 | $418.24 | $780.86 | $82,866.88 |
| 276 | $414.33 | $784.77 | $82,082.12 |
| 277 | $410.41 | $788.69 | $81,293.42 |
| 278 | $406.47 | $792.63 | $80,500.79 |
| 279 | $402.50 | $796.60 | $79,704.19 |
| 280 | $398.52 | $800.58 | $78,903.61 |
| 281 | $394.52 | $804.58 | $78,099.03 |
| 282 | $390.50 | $808.61 | $77,290.42 |
| 283 | $386.45 | $812.65 | $76,477.78 |
| 284 | $382.39 | $816.71 | $75,661.06 |
| 285 | $378.31 | $820.80 | $74,840.27 |
| 286 | $374.20 | $824.90 | $74,015.37 |
| 287 | $370.08 | $829.02 | $73,186.34 |
| 288 | $365.93 | $833.17 | $72,353.17 |
| 289 | $361.77 | $837.34 | $71,515.84 |
| 290 | $357.58 | $841.52 | $70,674.32 |
| 291 | $353.37 | $845.73 | $69,828.59 |
| 292 | $349.14 | $849.96 | $68,978.63 |
| 293 | $344.89 | $854.21 | $68,124.42 |
| 294 | $340.62 | $858.48 | $67,265.94 |
| 295 | $336.33 | $862.77 | $66,403.17 |
| 296 | $332.02 | $867.09 | $65,536.09 |
| 297 | $327.68 | $871.42 | $64,664.67 |
| 298 | $323.32 | $875.78 | $63,788.89 |
| 299 | $318.94 | $880.16 | $62,908.73 |
| 300 | $314.54 | $884.56 | $62,024.17 |
| 301 | $310.12 | $888.98 | $61,135.19 |
| 302 | $305.68 | $893.43 | $60,241.77 |
| 303 | $301.21 | $897.89 | $59,343.88 |
| 304 | $296.72 | $902.38 | $58,441.50 |
| 305 | $292.21 | $906.89 | $57,534.60 |
| 306 | $287.67 | $911.43 | $56,623.17 |
| 307 | $283.12 | $915.99 | $55,707.19 |
| 308 | $278.54 | $920.57 | $54,786.62 |
| 309 | $273.93 | $925.17 | $53,861.46 |
| 310 | $269.31 | $929.79 | $52,931.66 |
| 311 | $264.66 | $934.44 | $51,997.22 |
| 312 | $259.99 | $939.11 | $51,058.10 |
| 313 | $255.29 | $943.81 | $50,114.29 |
| 314 | $250.57 | $948.53 | $49,165.76 |
| 315 | $245.83 | $953.27 | $48,212.49 |
| 316 | $241.06 | $958.04 | $47,254.45 |
| 317 | $236.27 | $962.83 | $46,291.62 |
| 318 | $231.46 | $967.64 | $45,323.98 |
| 319 | $226.62 | $972.48 | $44,351.50 |
| 320 | $221.76 | $977.34 | $43,374.16 |
| 321 | $216.87 | $982.23 | $42,391.93 |
| 322 | $211.96 | $987.14 | $41,404.78 |
| 323 | $207.02 | $992.08 | $40,412.71 |
| 324 | $202.06 | $997.04 | $39,415.67 |
| 325 | $197.08 | $1,002.02 | $38,413.65 |
| 326 | $192.07 | $1,007.03 | $37,406.61 |
| 327 | $187.03 | $1,012.07 | $36,394.55 |
| 328 | $181.97 | $1,017.13 | $35,377.42 |
| 329 | $176.89 | $1,022.21 | $34,355.20 |
| 330 | $171.78 | $1,027.33 | $33,327.88 |
| 331 | $166.64 | $1,032.46 | $32,295.42 |
| 332 | $161.48 | $1,037.62 | $31,257.79 |
| 333 | $156.29 | $1,042.81 | $30,214.98 |
| 334 | $151.07 | $1,048.03 | $29,166.96 |
| 335 | $145.83 | $1,053.27 | $28,113.69 |
| 336 | $140.57 | $1,058.53 | $27,055.16 |
| 337 | $135.28 | $1,063.83 | $25,991.33 |
| 338 | $129.96 | $1,069.14 | $24,922.19 |
| 339 | $124.61 | $1,074.49 | $23,847.70 |
| 340 | $119.24 | $1,079.86 | $22,767.83 |
| 341 | $113.84 | $1,085.26 | $21,682.57 |
| 342 | $108.41 | $1,090.69 | $20,591.88 |
| 343 | $102.96 | $1,096.14 | $19,495.74 |
| 344 | $97.48 | $1,101.62 | $18,394.12 |
| 345 | $91.97 | $1,107.13 | $17,286.99 |
| 346 | $86.43 | $1,112.67 | $16,174.32 |
| 347 | $80.87 | $1,118.23 | $15,056.09 |
| 348 | $75.28 | $1,123.82 | $13,932.27 |
| 349 | $69.66 | $1,129.44 | $12,802.83 |
| 350 | $64.01 | $1,135.09 | $11,667.75 |
| 351 | $58.34 | $1,140.76 | $10,526.98 |
| 352 | $52.63 | $1,146.47 | $9,380.52 |
| 353 | $46.90 | $1,152.20 | $8,228.32 |
| 354 | $41.14 | $1,157.96 | $7,070.36 |
| 355 | $35.35 | $1,163.75 | $5,906.61 |
| 356 | $29.53 | $1,169.57 | $4,737.04 |
| 357 | $23.69 | $1,175.42 | $3,561.63 |
| 358 | $17.81 | $1,181.29 | $2,380.33 |
| 359 | $11.90 | $1,187.20 | $1,193.14 |
| 360 | $5.97 | $1,193.14 | $0.00 |
Como usar
- Informe o valor do empréstimo, a taxa de juros anual e o prazo em anos.
- Revise a parcela mensal, os juros totais e o pagamento total nos cartões de resumo.
- Use o gráfico e a tabela para ver como principal e juros mudam a cada ano.
FAQ
O que esta calculadora de amortização mostra?
Calcula uma parcela mensal fixa para um empréstimo totalmente amortizável e gera um cronograma ano a ano dividindo cada pagamento em principal e juros. Também mostra saldo restante e juros acumulados em um gráfico.
O que significam as linhas do gráfico?
Saldo restante (azul, descendente) é o que você ainda deve. Juros acumulados (verde, ascendente) são os juros pagos até o momento. Nos primeiros anos paga-se mais juros; nos últimos, mais principal.
Qual fórmula é usada?
A parcela mensal usa PMT = P × [r(1+r)^n] / [(1+r)^n − 1], onde P é o valor do empréstimo, r é a taxa mensal e n são os meses. A cada mês, juros = saldo × r e principal = parcela − juros.
Meus dados são enviados?
Não. O processamento ocorre localmente no seu navegador.
Esta ferramenta oferece aconselhamento financeiro?
Não. Os resultados são apenas estimativas informativas e não substituem orientação profissional.
Introdução
Uma calculadora de amortização ajuda você a entender como um empréstimo de taxa fixa é quitado ao longo do tempo: quanto é cada parcela mensal, quanto vai para juros versus principal e como o saldo restante chega a zero.
Informe o valor do empréstimo, a taxa de juros mensal e o prazo. A ferramenta calcula sua parcela e mostra um cronograma mês a mês mais um gráfico interativo.
O que é a calculadora de amortização?
A Calculadora de amortização usa três entradas:
- Valor do empréstimo — total emprestado
- Taxa de juros mensal (%) — custo mensal do empréstimo
- Prazo do empréstimo (anos) — por quanto tempo você paga
Ela estima:
- Parcela mensal — pagamento fixo a cada mês
- Juros totais — todos os juros pagos durante o prazo completo
- Pagamento total — principal mais juros totais
Um gráfico interativo e uma tabela mês a mês mostram como o reembolso se divide entre juros e principal ao longo do tempo.
Entendendo as linhas do gráfico
O gráfico mostra duas linhas que acompanham o progresso da quitação do empréstimo.
1. Saldo restante (linha azul)
O que mostra: Quanto você ainda deve no final de cada ano.
Por que importa: Esta linha desce em direção a zero conforme o empréstimo é quitado. A curva fica mais acentuada nos últimos anos, quando mais de cada parcela vai para o principal.
2. Juros acumulados (linha verde)
O que mostra: Total de juros pagos desde o início até cada ano.
Por que importa: Esta linha sobe ao longo do empréstimo. A maior parte dos juros é paga no início, quando o saldo é mais alto — um insight importante para comparar custos de empréstimo.
Como a parcela mensal é calculada
A ferramenta assume uma parcela mensal fixa em um empréstimo totalmente amortizável:
PMT = P × [r(1 + r)^n] / [(1 + r)^n − 1]
Onde:
P= valor do empréstimor= taxa mensal ÷ 12 (taxa mensal em decimal)n= anos × 12 (número de meses)PMT= parcela mensal
A cada mês:
- Juros = saldo restante ×
r - Principal = parcela − juros
- Novo saldo = saldo anterior − principal
Se a taxa for 0%, a parcela se simplifica para P / n.
Casos de uso comuns
- Estimar parcelas mensais para hipoteca, financiamento de veículo ou empréstimo pessoal.
- Ver o custo total de juros antes de contrair um empréstimo.
- Comparar como um prazo mais curto ou taxa mais baixa reduz os juros pagos.
- Ensinar como a amortização passa de parcelas com muitos juros para parcelas com muito principal.
Parcela fixa vs amortização constante
Nem todo empréstimo usa a mesma estrutura. Esta ferramenta usa parcela mensal fixa (amortização): o pagamento total permanece fixo enquanto juros e principal mudam. Na amortização constante (trả gốc đều), o principal mensal é fixo e o pagamento total cai.
| Parcela fixa (esta ferramenta) | Amortização constante | |
|---|---|---|
| O que fica fixo | Pagamento total por mês | Principal por mês |
| O que muda | Principal sobe, juros caem | Pagamento total cai |
| Primeiros meses | Pagamento total menor | Pagamento total maior |
| Juros totais (mesma taxa e prazo) | Maior | Menor — quitação mais rápida |
| Comum em | EUA, Europa, Índia, Japão, muitos financiamentos | China, Vietnã, alguns empréstimos corporativos asiáticos |
| Experimentar | Parcela fixa (esta ferramenta) (você está aqui) | Calculadora de amortização constante |
Boas práticas
- Confirme se seu credor usa as mesmas regras de arredondamento para a parcela final.
- Impostos, seguros e taxas não estão incluídos, a menos que você ajuste as entradas mmensalmente.
- Pagamentos extras de principal não são modelados — esta ferramenta assume apenas parcelas fixas programadas.
- Trate os resultados como estimativas de planejamento, não garantias ou aconselhamento financeiro.