Calculation Methodology
How we calculate results, handle precision, and maintain reliable formulas.
1. Standard Formulas
Our calculators utilize widely accepted industry-standard formulas. For example, financial calculators use standard amortization and compound interest formulas, while health calculators rely on recognized formulas such as the Mifflin-St Jeor equation for BMR.
2. Precision and Rounding
Internally, all math is calculated with high floating-point precision to minimize rounding errors. Results displayed to the user are rounded only at the final step, typically to two decimal places for currency, or standard logical decimals for percentages.
3. Edge Case Handling
We rigorously test our calculators against edge cases such as zero values, extreme limits, and invalid inputs. We strive to provide meaningful error messages and prevent misleading outputs.
4. Continuous Testing
Our calculation engine is backed by automated tests that verify results against known inputs and expected outputs, ensuring continued reliability as the platform grows.