Magic Mile Pace Calculator

This Magic Mile Calculator predicts race times from a one-mile time trial using Jeff Galloway's performance formulas. Enter your Magic Mile time and target distance to see your ideal race pace, predicted finish time, and speed for 5K through marathon.

Jeff Galloway Race Prediction Formulas

5K pace = Magic Mile time + 33 sec/mile. For longer distances multiply your Magic Mile time: 10K × 1.15, 10-mile × 1.175, half-marathon × 1.2, marathon × 1.3. A 7:23 Magic Mile predicts a 10K pace of 8:29 per mile and a finish time of about 52:46.

How to Run a Magic Mile Test

Warm up with easy running and short accelerations. Run one mile as fast and evenly as possible on a track or flat course. Record your time. Walk five minutes to recover. Use that time in the calculator to plan training paces for upcoming races.

Frequently Asked Questions

What is the Magic Mile test?

The Magic Mile is a one-mile time trial used by coach Jeff Galloway to predict race paces from 5K through marathon. Run one mile as fast as you can after a proper warm-up.

How do I calculate my 10K pace from Magic Mile?

Multiply your Magic Mile time by 1.15. A 7:00 Magic Mile gives a 10K pace of 8:03 per mile. Finish time equals pace multiplied by 6.21 miles.

How accurate are Magic Mile predictions?

Predictions work best when you run the mile evenly and train consistently. Galloway notes effective training can improve performance 3% to 5% over six months beyond the initial estimate.

What is my marathon pace from Magic Mile?

Multiply your Magic Mile time by 1.3. A 6:10 Magic Mile predicts a marathon pace of about 8:01 per mile and a finish near 3 hours 31 minutes.

Why is the 5K formula different from other distances?

The 5K formula adds 33 seconds per mile to your Magic Mile time rather than using a multiplier. This reflects the shorter distance and higher relative intensity of a 5K race.

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Magic Mile Calculator