Reverse loan amount
Infer the principal supported by a fixed payment, annual percentage rate and monthly term under equal-installment repayment.
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Reverse-loan JSON
Loan amount result
Principal is inferred with the equal-installment formula.
Enter reverse-loan JSON to calculate
: 0 · : 0 · : 0
What this tool does
- Estimate principal from an affordable monthly payment.
- Check the principal and interest split in a loan quote.
Example
Input
{"payment":3000,"annualRate":4.8,"months":36}Output
Loan amount / 贷款金额: 100397.63 Total payment / 本息合计: 108000.00 Total interest / 利息合计: 7602.37
Payment is a currency amount, annual rate is a percentage and term is months; the annuity present-value formula excludes extra fees.
Frequently asked questions
How is zero interest handled?
Principal equals payment multiplied by the number of months.
What rate unit is used?
Enter a percentage, such as 4.8 for 4.8%.
Does it reverse equal-principal loans?
No. This tool is defined for equal-installment annuity present value.
Keywords：反算贷款金额贷款本金月供反推loan amountprincipalfinance