Training Pace Calculator
Enter a race result to calculate your 5 training zone paces using Jack Daniels' VDOT formula.
Enter Your Recent Race Result
Hours
Minutes
Seconds
Calculated Result
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Common Mistakes
1. Easy pace seems too slow?
That's the point — it's supposed to feel slow. Most runners run their Easy days too fast, which reduces the training benefit.
2. Do I need to train in all zones every week?
No. A good starting point is the 80/20 rule: about 80% of your weekly running at Easy pace and 20% at harder intensities. This ratio is recommended by many experts, but you can adjust based on your experience and goals. If you run 4 times a week: 3 Easy runs + 1 Threshold or Interval session is a solid start.
3. How do I know if these paces are right for me?
If you can breathe through your nose and hold a conversation at Easy pace, it's correct. If you can say one sentence but can't chat at Threshold pace, that's also correct.
4. I'm a complete beginner with no race results?
Enter your most recent all-out effort. If you've never run 5K, a 3K or even 2K time works too — just enter the distance in meters using the custom input.
5. Which race distance gives the most accurate results?
Your most frequently raced distance with a recent result gives the best accuracy. Even at the same fitness level, zones estimated from a 5K time may differ slightly from those estimated from a marathon time. Zones closest to your input distance tend to be more accurate.
How does this calculator work?
This calculator is based on Dr. Jack Daniels' VDOT system. 1. It estimates your current fitness level (VDOT score) from your race result. 2. Using that VDOT score, it divides training into 5 zones based on the percentage of your VO2Max (maximum oxygen uptake). 3. It converts each zone's intensity percentage back into actual running pace. This system was developed by Dr. Daniels from analyzing thousands of runners' data and has been used by coaches and runners worldwide for over 30 years.
These paces are a 'starting point.'
• Calculations assume a flat course with standard running shoes. • If your race was run in carbon-plated shoes (e.g., Nike Vaporfly), your estimated fitness may be slightly inflated. • Results from downhill courses or tailwind conditions may also lead to overestimation. • It's wise to adjust ±10–20 sec/km based on temperature, altitude, sleep, and daily condition.
Results are estimates based on Jack Daniels' VDOT formula. Actual training paces may vary depending on fitness level, climate, and course conditions.
This calculator uses the standard VDOT formula, but our AI Coach adjusts for your carbon shoes, course elevation, weather, and injury history to create a truly personalized schedule.
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