Credit Spread Calculator - Bond Yield Difference in BPS

Calculate the credit spread between two bond yields in percentage points and basis points to evaluate relative credit risk and fixed-income pricing.

Enter a higher bond yield and a lower reference yield to measure the credit spread in percent and in basis points.

Calculate the credit spread between two bond yields in percentage points and basis points to evaluate relative credit risk and fixed-income pricing.

Higher Bond Yield

Lower Bond Yield

About Bond Credit Spreads

The credit spread calculator measures how much extra yield a riskier bond offers over a safer reference, usually a government or swap curve of similar maturity. Credit spread in percent is higher yield minus lower yield. Spread in basis points is that difference times 100, because one basis point is 0.01 percentage point. A corporate yield of 6.50% versus a 4.20% Treasury is a 2.30% spread, or 230 basis points. Traders quote most credit products in basis points, so both units are shown. A wider spread can mean more compensation for default risk, lower liquidity, or a different duration and embedded option. A tighter spread can mean a stronger credit, a hunt for yield, or a mismatch in maturity. The credit spread calculator does not duration-match the two bonds; it subtracts the yields you enter. For a clean comparison, use yields of similar maturity and the same compounding convention, such as two yield-to-maturity figures or two option-adjusted spreads already computed elsewhere. Portfolio managers watch spreads to decide whether credit is cheap versus history. Corporate treasurers watch them when pricing new issuance. Students use the conversion to learn why 25 basis points is a quarter of a percent. Change one yield at a time to see how a rally in Treasuries or a selloff in corporates moves the spread without any change in the other market. Caveats: yield differences also embed tax treatment, call features, and currency. A municipal-to-Treasury comparison is not a pure credit spread. Negative spreads can appear if the "higher" yield is actually lower; swap the inputs or read the sign as an inversion. Confirm quotes from the same date and time. Used as a quick quote check, the credit spread calculator makes percentage-point and basis-point language consistent. Record both yields and the quote time so a later widening or tightening can be compared with the same pair of instruments.

Credit Spread Calculator Examples

Each example subtracts the lower yield from the higher yield and multiplies by 100 for basis points.

Inputs	Result	Notes
Higher yield 6.5%, lower yield 4.2%	2.30%; 230.00 bps	A corporate-versus-Treasury gap of 230 basis points.
Higher yield 5.25%, lower yield 4.00%	1.25%; 125.00 bps	A tighter high-grade spread over the same reference style.
Higher yield 8.00%, lower yield 3.50%	4.50%; 450.00 bps	High-yield bonds often trade several hundred basis points over governments.

How to Calculate a Credit Spread

Enter the higher bond yield as a percent, such as 6.5 for 6.5%.
Enter the lower reference yield in the same percent units and similar maturity.
Select Calculate to view the spread in percent and in basis points.
Update either yield after a market move and calculate again to track the gap.

Credit Spread Calculator FAQ

How is a credit spread calculated?

Subtract the lower reference yield from the higher bond yield. Multiply that percentage-point difference by 100 to express the same gap in basis points.

Why show both percent and basis points?

Cash yields are often written as 6.50%, while credit desks quote +230 bp. Showing both units avoids a 100-times error when someone mixes the two conventions.

Which yield should be the lower input?

Use the safer or benchmark yield, such as a government bond or swap rate of similar maturity. If you reverse the inputs, the spread sign flips even though the absolute gap is the same.

Does this adjust for duration or options?

No. It is a raw yield difference. Option-adjusted spread, z-spread, and duration-matched spread require a full curve model that this calculator does not run.

Can the credit spread be negative?

Yes, if the bond you labeled higher actually yields less than the reference. That can happen with premium credits, tax effects, or a maturity mismatch. Check the quotes before treating a negative print as a trading signal.