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Quick calculator guide

How to use OPR Impact Calculator Malaysia

See how an OPR or interest-rate change affects your home loan instalment, with a rate-shock scenario table. Results are educational estimates, not official approval or advice.

  1. 1

    Enter the loan and rate movement

    Add outstanding balance, current effective rate, remaining tenure and the OPR-linked rate increase or decrease to model.

  2. 2

    Compare repayments before and after

    Review the current payment, revised payment, monthly difference and any rate-shock scenarios shown.

  3. 3

    Test hikes and cuts

    Try several small rate changes while keeping the same balance and tenure to understand repayment sensitivity.

Before relying on the result

  • Confirm the loan's reference rate, spread, repricing date and whether the bank changes instalment or tenure.
  • Notice the rate date and assumptions stated on the page.
  • Confirm important decisions with the relevant bank, employer, or authority.
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OPR Impact Calculator Malaysia

See how an OPR or interest-rate rise (or cut) changes your home-loan instalment, with a rate-shock scenario table.

Positive for a hike, negative for a cut.

To show the increase as a % of income.

Rate sensitivity

Moderate sensitivity — worth keeping a buffer.

Monthly change at 4.5%

+RM 83.99

Current instalment
RM 1,583.51
New instalment (4.5%)
RM 1,667.50
Monthly change
+RM 83.99
Annual change
+RM 1,007.84
Total interest change
+RM 25,196.07

Rate-change scenarios

ChangeNew rateInstalmentΔ/month
-0.25%3.75%RM 1,542.39−RM 41.12
+0.25%4.25%RM 1,625.21+RM 41.70
+0.5%4.5%RM 1,667.50+RM 83.99
+0.75%4.75%RM 1,710.35+RM 126.84

Assumptions

  • Reducing balance (amortising) formula used, keeping the same remaining tenure.
  • The rate change is applied to the full outstanding balance for the remaining tenure.
  • Banks set the actual rate (often OPR plus a spread); this is an estimate, not advice.

This calculator provides estimates only. KiraSmart is not financial advice. Please verify with official sources or professionals before making decisions. Read full disclaimer

Information last reviewed: 2026-07-25 · Result type: user-input estimate

Related Calculators

Home Loan Calculator Malaysia→Home Loan Affordability Calculator Malaysia→Home Loan Refinancing Calculator→DSR Calculator Malaysia→
Report an issue or outdated rate

How does the OPR affect your loan?

The Overnight Policy Rate (OPR) is set by Bank Negara Malaysia. Most home loans use a floating rate (OPR plus the bank's spread), so when the OPR moves, your monthly instalment moves with it. This calculator shows the impact on your instalment and total interest over your remaining tenure.

Longer remaining tenures are more sensitive to rate changes. The figures here are estimates — your bank sets the actual rate, and this is not financial advice.

Frequently Asked Questions