Yield Curve Interpolation Calculator
Linearly interpolate the yield for any maturity between two curve points — the convention for off-the-run pricing.
Formula
FIMMDA and most valuation agencies interpolate linearly on yield between quoted tenors to mark non-benchmark bonds. Linear-on-yield slightly misprices convex segments — fine inside 5-year gaps, dangerous across the 1y–10y span.
Not financial advice — for informational and analytical use only. Verify all figures with a qualified professional before acting on them.
Need yield curve interpolation calculator results fast? Analysts, founders, traders and finance professionals use the Yield Curve Interpolation Calculator to skip the spreadsheet and get a defensible answer in one step — free, private and instant.
About Yield Curve Interpolation Calculator
Linearly interpolate the yield for any maturity between two curve points — the convention for off-the-run pricing. FIMMDA and most valuation agencies interpolate linearly on yield between quoted tenors to mark non-benchmark bonds. Linear-on-yield slightly misprices convex segments — fine inside 5-year gaps, dangerous across the 1y–10y span. The governing relationship is y(t) = y₁ + (t−t₁)/(t₂−t₁) × (y₂−y₁). The Yield Curve Interpolation Calculator computes entirely in your browser — free, private (your figures never leave your device) and instant, recalculating live as you change any input.
How to use Yield Curve Interpolation Calculator
- 1Enter Known maturity 1 (years), Yield at maturity 1 (%), Known maturity 2 (years), Yield at maturity 2 (%), Target maturity (years) into the Yield Curve Interpolation Calculator.
- 2The result is computed automatically using y(t) = y₁ + (t−t₁)/(t₂−t₁) × (y₂−y₁) — there is no button to press.
- 3Change any input to model a different scenario, then copy or share the result.
Why use Yield Curve Interpolation Calculator?
- ✓Computes yield curve interpolation calculator instantly with the correct formula — no spreadsheet needed
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser, so the figures you enter stay private
- ✓Shows the formula, a live worked example and references so you can defend the number
Frequently asked questions
What is the formula behind the Yield Curve Interpolation Calculator?+
Yield Curve Interpolation Calculator uses y(t) = y₁ + (t−t₁)/(t₂−t₁) × (y₂−y₁). FIMMDA and most valuation agencies interpolate linearly on yield between quoted tenors to mark non-benchmark bonds. The tool substitutes your actual inputs into this relationship and shows the worked example step by step.
What inputs does the Yield Curve Interpolation Calculator need?+
Enter Known maturity 1 (years), Yield at maturity 1 (%), Known maturity 2 (years), Yield at maturity 2 (%), Target maturity (years) and the result updates immediately — there is no button to press. Change any value to model a different scenario in real time.
Is the Yield Curve Interpolation Calculator free, and is my data private?+
Yes — it is completely free with no sign-up or usage limit, and it runs entirely in your browser, so the numbers you enter are never uploaded or stored on any server. It is for informational and analytical use, not financial advice.
What should I watch out for when using the Yield Curve Interpolation Calculator?+
Linear-on-yield slightly misprices convex segments — fine inside 5-year gaps, dangerous across the 1y–10y span.
What is the Yield Curve Interpolation Calculator based on?+
The method follows authoritative sources: FIMMDA valuation methodology — interpolation. The formula and references are shown on the page so you can verify and cite the result.
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