Simpson Rule Integral Calculator

Approximate definite integrals of quadratic functions using composite Simpson's rule over an even number of intervals.

Quick Facts

Core Formula
Integral ≈ h/3 [f(x0)+f(xn)+4Σf(odd)+2Σf(even)]
Use this for planning estimates and sanity checks.

Your Results

Calculated
Integral Estimate
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Primary output
Step Size h
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Secondary output
Endpoint Sum
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Verification metric
Method Status
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Interpretation

Ready

Enter values and calculate to get scenario outputs.

How This Calculator Works

This calculator is scoped for practical scenario analysis with concise outputs that are easy to compare.

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