A basis point is defined as exactly 1/100th of a percentage point — the standard finance-industry unit for precisely quoting small interest-rate and yield changes.
How it works
Dividing basis points by 100 gives a percentage; multiplying a percentage by 100 gives basis points back. Type into either field and the other updates instantly.
What this does not include
This does not include dollar-amount calculations — this converts only between basis points and percentage, not a specific monetary value.
How to use this calculator
- Enter a value in either basis points or percent — the other field fills in automatically.
A worked example
50 basis points converts to 50 ÷ 100 = 0.5%.
1.25% converts to 1.25 × 100 = 125 basis points — the reverse calculation.
What the variables mean
| Variable | Meaning |
|---|---|
| Basis points (bps) | One hundredth of a percentage point, the standard unit for small rate changes in finance |
| Percent | The equivalent value as a plain percentage |
Edge cases worth knowing
Basis points exist to avoid ambiguity when discussing small rate changes. Saying a rate “increased by 1%” is unclear if the base rate itself is a percentage — “increased by 100 basis points” is unambiguous.
100 basis points always equals exactly 1% — a fixed conversion factor, not something that varies by context.
Frequently asked questions
Why do finance professionals use basis points instead of percentages?
Basis points avoid ambiguity when discussing small changes — saying a rate moved “25 basis points” is more precise than saying it moved “0.25%,” which could be misread as a 25% relative change.
How many basis points are in 1%?
Exactly 100 — a basis point is defined as one hundredth of a percentage point.
Where are basis points most commonly used?
Interest rates, bond yields, and central bank policy rate changes, where precision matters for small movements.
