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1 Million Loan 30-Year Equal Principal Calculator

Equal-principal mortgage on a 1,000,000 30-year loan at 3.45%: first payment ≈5,653, decreasing ~8/month; total interest ≈519,000.

Free online · Instant results

Equal payment: M=P×r×(1+r)ⁿ÷[(1+r)ⁿ-1] | Equal principal: k-th month=P/n+(P-P×(k-1)/n)×r | LPR (2025): 1Y 3.10% / 5Y+ 3.45% | Housing fund: 2.85%

Loan Type

Commercial loan amount (CNY)

Commercial annual rate (%)

Loan term (years)

Repayment Method

First payment month

Holding costs (optional)

Property fee /mo

Heating /yr

Insurance /yr

Equal Principal Monthly Payment4,219.27CNY

First month payment5,652.78CNY

Last month payment2,785.76CNY

Monthly principal2,777.78CNY

Total Loan1,000,000CNY

Total Payment1,518,937.50CNY

Total Interest518,937.50CNY

Interest Share34.2%

Payment Breakdown

Principal1,000,000 (65.8%)Interest518,938 (34.2%)

AssessmentLow interest share — light burden

Reference rates (2025)LPR 1Y 3.10% / 5Y+ 3.45% | Fund 2.85%

Calculation steps

1Principal 1,000,000, 360 months, equal principal
2Monthly principal = P ÷ n = 2,777.78; month k payment = principal share + remaining × r
3First month 5,652.78, last month 2,785.76
4Total interest = 518,937.50 (34.2%)

5Y+ LPR history (year-end)

20204.65%

20214.65%

20224.30%

20234.20%

20243.60%

20253.45%

Equal payment keeps the monthly outlay constant (better for stable budgets); equal principal costs more early on but saves 10–20% total interest over 30 years. LPR repricing applies from your loan's repricing date — a rate cut does not lower your payment immediately.

💡 Switch to the "Prepayment" tab to compare 3 early-payoff plans

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Frequently Asked Questions

What is the first monthly payment on a 1M 30-year equal-principal mortgage?▼

At 3.45%: the first payment is about 5,653, decreasing by ~8 each month, with total interest ≈ 519,000 — saving about 87,000 vs equal installments (4,462/month).

How do I use the Mortgage Calculator?▼

Open the page and fill in the input fields — results update automatically. Monthly payment, rates and early-payoff comparison.

Are the results accurate?▼

Yes. Standard financial formulas and published rate data are used. For official figures, consult your financial institution.

Is it free? Do I need to sign up?▼

Completely free. No registration, login or download required.

Can I use the results for financial decisions?▼

Results are for reference. Consult a licensed financial advisor before major decisions.

💡

This is a dedicated variant of the Mortgage Calculator, pre-configured for this scenario with tailored FAQs.