APR calculator
Estimate APR from principal, equal monthly payments and entered fees. Solves cash-flow present value with equal months. Does not replace contractual APR.
Result
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Formula and instructions
P − F₀ = Σ (A + Fₘ)/(1+r)^m; APR = ((1+r)^12 − 1) × 100
Estimate APR from principal, equal monthly payments and entered fees. Solves cash-flow present value with equal months. Does not replace contractual APR.
Sources and further reading
Frequently asked questions
Which formula does this tool use?
P − F₀ = Σ (A + Fₘ)/(1+r)^m; APR = ((1+r)^12 − 1) × 100 Estimate APR from principal, equal monthly payments and entered fees. Solves cash-flow present value with equal months. Does not replace contractual APR.