Health & fitness · NUMORA
Race Predictor Calculator
Riegel: predict another distance from a known race.
Open interactive calculatorHow to use
t2 = t1 × (d2/d1)^1.06. Amateur heuristic.
Formula
t2 = t1 (d2/d1)^{1.06}
FAQ
Is this Race Predictor calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
t2 = t1 × (d2/d1)^1.06. Amateur heuristic.
Related calculators
- BMI calculatorWHO and Asian cutoffs, side by side.
- BMR calculatorMifflin–St Jeor, the usual clinical estimate.
- Tdee calculatorMaintenance calories plus protein/carb/fat split.
- Whr calculatorA simple central-obesity marker.
- Body Fat calculatorNavy girth, or Deurenberg from BMI and age.
- Pregnancy calculatorLMP + 280 days (Naegele).
- Steps To Miles calculatorStride from height.
- Walk A Mile calculatorTime, calories and steps from mph, plus a full pace table.