How to use this calculator
- Enter original rate (%), new rate (%).
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Basis-point change = (new percentage rate − old percentage rate) × 100.
Assumptions and limitations
This converts an absolute rate change and does not calculate the relative percentage increase.
Worked example
With original rate (%) = 4.5, new rate (%) = 5, change in basis points is approximately 50.
What the result means
One basis point is 0.01 percentage points; it is not a 1% relative change in the original rate.
Common questions
How should I interpret change in basis points?
One basis point is 0.01 percentage points; it is not a 1% relative change in the original rate.
What should I check before using this result?
This converts an absolute rate change and does not calculate the relative percentage increase.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.