Mortgage rate calculator
Convert an LPR reference and basis-point adjustment into a contract rate and payment
Enter a confirmed LPR. Negative BP subtracts and positive BP adds.
Enter a confirmed LPR yourself. The page does not fetch or label a value as current.
Calculation result
Example
Input
LPR 3.1% · minus 20 BP · CNY 1,000,000 · 30 years
Example result
A 2.9% contract annual rate and matching payment
Negative BP subtracts; positive BP adds.
Technical details & limits
One hundred basis points equal one percentage point: contract rate = LPR + BP÷100, then monthly rate is annual rate÷12.
About this tool
Convert a reference LPR plus or minus basis points into a contract annual rate, monthly rate and equal payment.
Use cases
- Work out the effective rate from an LPR plus or minus a spread.
- See how a change in the spread affects the payment and total interest.
- Feed the effective rate straight into the same loan for comparison.
How to use
- Enter the LPR you have confirmed.
- Enter the spread in basis points; use a negative number to subtract.
- The result gives the effective rate plus the payment and total interest for the principal and term.
Notes
The page supplies no current LPR; enter one from a reliable source, because a stale LPR skews every figure that follows. The reset cycle and effective date come from your contract.
FAQ
- How do LPR and basis points combine into an annual mortgage rate?
- The annual rate equals the entered LPR plus basis points divided by 100, since 100 basis points equal 1 percentage point. An assumed LPR of 3.5% minus 20 basis points produces 3.3%. These figures illustrate the conversion rather than report current market values. This page does not automatically fetch LPR, so confirm the contractual benchmark and adjustment before using the resulting rate in a payment calculation.
- Does subtracting twenty basis points mean reducing a mortgage rate by twenty percent?
- Subtracting 20 basis points removes 0.20 percentage points, rather than multiplying the original rate by eighty percent. An assumed rate of 3.5% therefore becomes 3.3%. Preserve the sign of the basis-point adjustment and distinguish a percentage-point change from a relative percentage change. Those operations are different, and confusing them produces the wrong annual rate even when the entered benchmark value itself is correct.
- Does the LPR mortgage calculator automatically retrieve the latest benchmark rate?
- This tool does not retrieve the latest LPR; users must enter a confirmed benchmark and basis-point adjustment. It treats 100 basis points as 1 percentage point, then divides the resulting annual rate by 12 for monthly calculations. Default values are examples rather than live quotations. Check the contract's repricing rules and relevant benchmark before comparing payments, because an accurate conversion cannot correct an outdated or inapplicable input rate.
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