1. What is the Running Time Conversion Formula?

The running time conversion formula estimates how a runner's time would change when running a different distance, based on their performance at a known distance. It accounts for the fact that running speed changes non-linearly with distance.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( Time_{old} \) — Your time for the known distance (in minutes)
• \( Dist_{old} \) — The distance you've already run (in kilometers)
• \( Dist_{new} \) — The new distance you want to predict time for (in kilometers)
• 1.06 — The exponent that accounts for non-linear speed changes with distance

Explanation: The exponent 1.06 reflects that runners slow down slightly more than linearly as distance increases.

3. Importance of Time Conversion

Details: This calculation helps runners set realistic goals for new distances, plan training paces, and compare performances across different race distances.

4. Using the Calculator

Tips: Enter your time for a known distance (hours, minutes, seconds), the distance you ran, and the new distance you want to predict. All values must be valid (distances > 0).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this prediction?
A: It's reasonably accurate for most runners, but individual variations in endurance and speed characteristics will affect actual performance.

Q2: Does this work for all distances?
A: It works best for distances between 5km and marathon. Very short or ultra-long distances may be less accurate.

Q3: Why the exponent 1.06?
A: Research shows this exponent best matches how runners' pace changes with distance, accounting for fatigue factors.

Q4: Should I use this for training paces?
A: It can guide training paces, but also consider your specific strengths (speed vs endurance) and current fitness.

Q5: Does terrain affect the calculation?
A: This assumes similar terrain. Trail runs or hilly courses would require adjustments not accounted for here.