贷款30万三年利息7厘多少？
贷款金额：300,000元
贷款期限：3年
年利率：0.07
利息计算方式：等额本息还款
利息总额计算公式：利息总额=贷款金额×年利率×贷款期限
利息总额=300,000元×0.07×3年=63,000元
每月还款额是多少？
等额本息还款公式：每月还款额=（贷款本金×年利率×（1+年利率）^贷款期限）÷（（1+年利率）^贷款期限-1）
等额本息还款额=（300,000元×0.07×（1+0.07）^3）÷（（1+0.07）^3-1）=10,620.82元
贷款30万三年利息7厘还款计划表
| 期数 | 本金（元） | 利息（元） | 月供（元） | 剩余本金（元） |
| --- | --- | --- | --- | --- |
| 1 | 2,500.00 | 628.34 | 10,620.82 | 297,500.00 |
| 2 | 2,569.33 | 612.97 | 10,620.82 | 294,930.67 |
| 3 | 2,638.98 | 598.32 | 10,620.82 | 292,291.69 |
| 4 | 2,709.00 | 584.30 | 10,620.82 | 289,582.69 |
| 5 | 2,779.44 | 570.86 | 10,620.82 | 286,803.25 |
| 6 | 2,850.35 | 557.95 | 10,620.82 | 284,032.90 |
| 7 | 2,921.78 | 545.52 | 10,620.82 | 281,111.12 |
| 8 | 2,993.80 | 533.50 | 10,620.82 | 278,117.32 |
| 9 | 3,066.46 | 521.84 | 10,620.82 | 275,050.86 |
| 10 | 3,139.81 | 510.49 | 10,620.82 | 271,911.05 |
| 11 | 3,213.92 | 499.38 | 10,620.82 | 268,697.13 |
| 12 | 3,288.85 | 488.55 | 10,620.82 | 265,408.28 |
| 13 | 3,364.67 | 478.03 | 10,620.82 | 262,043.61 |
| 14 | 3,441.46 | 467.74 | 10,620.82 | 258,602.15 |
| 15 | 3,519.28 | 457.72 | 10,620.82 | 255,082.87 |
| 16 | 3,598.21 | 447.99 | 10,620.82 | 251,484.66 |
| 17 | 3,678.31 | 438.59 | 10,620.82 | 247,806.35 |
| 18 | 3,759.66 | 429.44 | 10,620.82 | 244,046.69 |
| 19 | 3,842.33 | 420.57 | 10,620.82 | 240,204.36 |
| 20 | 3,926.40 | 411.90 | 10,620.82 | 236,277.96 |
| 21 | 4,011.95 | 403.45 | 10,620.82 | 232,266.01 |
| 22 | 4,099.07 | 395.13 | 10,620.82 | 228,166.94 |
| 23 | 4,187.86 | 387.04 | 10,620.82 | 224,088.08 |
| 24 | 4,278.41 | 379.19 | 10,620.82 | 220,009.67 |
| 25 | 4,370.86 | 371.54 | 10,620.82 | 215,949.71 |
| 26 | 4,465.37 | 364.03 | 10,620.82 | 211,924.34 |
| 27 | 4,562.09 | 356.71 | 10,620.82 | 207,972.25 |
| 28 | 4,661.18 | 349.42 | 10,620.82 | 204,071.07 |
| 29 | 4,762.79 | 342.21 | 10,620.82 | 200,228.28 |
| 30 | 4,866.99 | 335.01 | 10,620.82 | 196,461.29 |
| 31 | 4,973.95 | 327.85 | 10,620.82 | 192,787.34 |
| 32 | 5,083.73 | 320.77 | 10,620.82 | 189,223.61 |
| 33 | 5,196.49 | 313.71 | 10,620.82 | 185,767.12 |
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