Developer tools
Loan / mortgage calculator
Annuity monthly payment and amortization schedule β runs in your browser.
Summary
{
"scheduleType": "annuity",
"monthlyPayment": 25393.43,
"lastMonthlyPayment": 25393.24,
"totalPayment": 1523605.61,
"totalInterest": 523605.61
}First months (schedule)
[
{
"month": 1,
"payment": 25393.43,
"interest": 15000,
"principal": 10393.43,
"balance": 989606.57
},
{
"month": 2,
"payment": 25393.43,
"interest": 14844.1,
"principal": 10549.33,
"balance": 979057.24
},
{
"month": 3,
"payment": 25393.43,
"interest": 14685.86,
"principal": 10707.57,
"balance": 968349.67
},
{
"month": 4,
"payment": 25393.43,
"interest": 14525.25,
"principal": 10868.18,
"balance": 957481.49
},
{
"month": 5,
"payment": 25393.43,
"interest": 14362.22,
"principal": 11031.21,
"balance": 946450.28
},
{
"month": 6,
"payment": 25393.43,
"interest": 14196.75,
"principal": 11196.68,
"balance": 935253.6
}
]Not a bank offer or financial advice. Banks may use different day-count or fees.
Your data never leaves the browser.
How it works
- Enter principal, annual rate %, term, and schedule type.
- Read payment(s), total interest, and schedule preview.
- Compare annuity vs differentiated offline β nothing is sent to the server.
FAQ
- Is this mortgage-ready for Russian banks?
- Standard formulas. Real contracts may add insurance, fees, or different day counts.
- Early repayment?
- Use /tools/early-repayment β supports multiple extras.