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Loan & Extra Payment Calculator

Calculate level-payment and equal-principal loans, model extra payments, stress-test rates, estimate affordability, inspect every payment, and export a CSV schedule.

Loan planning workspace

Calculated locally

See payments, lifetime interest, amortization, and extra-payment impact in one place for mortgages, auto loans, and installments.

Loan details

Use the principal, effective rate, and term shown in your loan offer.

%
years
Optional

First payment

CN¥4,688.08

First-month outflow including other costs is about CN¥4,688.08

40.7%Interest share

Total interest

CN¥687,709.64

Principal + interest

CN¥1,687,709.64

Estimated payoff

Jun 2056

Actual term

30 years

Principal and interest trend

Track the falling balance alongside cumulative principal and interest.

Remaining balancePrincipal paidInterest paid
Start15 years30 years

Current method

Level payment

CN¥4,688.08

CN¥687,709.64 total interest

Alternative method

Equal principal

CN¥5,986.11

CN¥579,104.17 total interest

Rate stress test

Assume the rate rises to 5.85%

CN¥5,899.41

CN¥1,211.33 more than the current first payment

Amortization schedule

360 payments in total. View yearly totals or monthly principal and interest.

YearPaymentPrincipalInterestExtra principalBalance
Year 1CN¥56,256.99CN¥18,073.70CN¥38,183.29CN¥981,926.30
Year 2CN¥56,256.99CN¥18,781.95CN¥37,475.04CN¥963,144.35
Year 3CN¥56,256.99CN¥19,517.95CN¥36,739.04CN¥943,626.40
Year 4CN¥56,256.99CN¥20,282.79CN¥35,974.19CN¥923,343.61
Year 5CN¥56,256.99CN¥21,077.61CN¥35,179.38CN¥902,266.00
Year 6CN¥56,256.99CN¥21,903.57CN¥34,353.42CN¥880,362.43
Year 7CN¥56,256.99CN¥22,761.90CN¥33,495.09CN¥857,600.53
Year 8CN¥56,256.99CN¥23,653.86CN¥32,603.12CN¥833,946.66
Year 9CN¥56,256.99CN¥24,580.78CN¥31,676.21CN¥809,365.88
Year 10CN¥56,256.99CN¥25,544.02CN¥30,712.97CN¥783,821.86
Year 11CN¥56,256.99CN¥26,545.00CN¥29,711.98CN¥757,276.86
Year 12CN¥56,256.99CN¥27,585.21CN¥28,671.77CN¥729,691.65
Year 13CN¥56,256.99CN¥28,666.19CN¥27,590.80CN¥701,025.46
Year 14CN¥56,256.99CN¥29,789.52CN¥26,467.47CN¥671,235.94
Year 15CN¥56,256.99CN¥30,956.87CN¥25,300.11CN¥640,279.07
Year 16CN¥56,256.99CN¥32,169.97CN¥24,087.02CN¥608,109.09
Year 17CN¥56,256.99CN¥33,430.60CN¥22,826.38CN¥574,678.49
Year 18CN¥56,256.99CN¥34,740.64CN¥21,516.35CN¥539,937.85
Year 19CN¥56,256.99CN¥36,102.01CN¥20,154.98CN¥503,835.84
Year 20CN¥56,256.99CN¥37,516.73CN¥18,740.26CN¥466,319.11
Year 21CN¥56,256.99CN¥38,986.88CN¥17,270.10CN¥427,332.23
Year 22CN¥56,256.99CN¥40,514.65CN¥15,742.34CN¥386,817.58
Year 23CN¥56,256.99CN¥42,102.28CN¥14,154.70CN¥344,715.30
Year 24CN¥56,256.99CN¥43,752.13CN¥12,504.85CN¥300,963.16
Year 25CN¥56,256.99CN¥45,466.63CN¥10,790.35CN¥255,496.53
Year 26CN¥56,256.99CN¥47,248.32CN¥9,008.67CN¥208,248.21
Year 27CN¥56,256.99CN¥49,099.83CN¥7,157.16CN¥159,148.38
Year 28CN¥56,256.99CN¥51,023.89CN¥5,233.10CN¥108,124.49
Year 29CN¥56,256.99CN¥53,023.34CN¥3,233.65CN¥55,101.15
Year 30CN¥56,256.99CN¥55,101.15CN¥1,155.84CN¥0.00

Results are planning estimates, not loan approval, investment, or financial advice. Calculations assume a fixed annual rate and monthly accrual and exclude any unentered taxes, insurance, service charges, penalties, and rounding differences. Use the repayment plan from your lender for actual amounts.

About Loan & Extra Payment Calculator

Make payments, interest, and payoff time easy to understand. Calculate level-payment and equal-principal loans, model extra payments, stress-test rates, estimate affordability, inspect every payment, and export a CSV schedule. The core workflow is designed to run in your current browser.

Key capabilities

  • Level-payment and equal-principal calculations with a complete principal and interest breakdown
  • Model recurring extras, lump sums, shorter terms, or recast lower payments
  • Estimate a loan budget from spending limits, income, current debt, and down payment
  • Yearly and monthly schedules, trend chart, rate stress test, and CSV export

Useful for

  • Estimate mortgage payments, lifetime interest, and cash needed for a down payment
  • Compare repayment methods, rates, and terms before choosing a loan
  • Estimate how much interest and time an extra payment plan could save

Frequently asked questions

Is Loan & Extra Payment Calculator free to use online?

Yes. Loan & Extra Payment Calculator opens in a modern browser and does not require desktop software installation.

What is Loan & Extra Payment Calculator useful for?

Common use cases include Estimate mortgage payments, lifetime interest, and cash needed for a down payment; Compare repayment methods, rates, and terms before choosing a loan.

Is my input or file uploaded?

The core processing workflow is designed to run locally in the browser. Key capabilities include Level-payment and equal-principal calculations with a complete principal and interest breakdown, Model recurring extras, lump sums, shorter terms, or recast lower payments, Estimate a loan budget from spending limits, income, current debt, and down payment; account, comments, and anonymous analytics may still create normal site requests.

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