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Annual Percentage Rate from Interest Cost — result sheet
Annualize an interest charge from principal and elapsed days using a simple non-compounded APR convention.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Simple APR = interest/principal×365/days×100.
This is a transparent annualization of the entered cost and is not a jurisdiction-specific disclosure APR.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Interest cost — currency; minimum 0; maximum 1000000000
- Principal — currency; minimum 1.0E-6; maximum 1000000000
- Elapsed days — days; minimum 1.0E-6; maximum 3660
Worked example
| Input | Value |
|---|---|
| Interest cost | 60 |
| Principal | 1000 |
| Elapsed days | 30 |
Simple annualized rate = 73% APR.
Assumptions and limits
- Interest and principal use one currency, principal and days are positive, and the charge is a simple cost.
- A 365-day convention is used for the annualization.
- Compounding, fees, mandatory disclosures, taxes, and local consumer-credit law are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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