Running pace calculator
Use our running pace calculator to find your ideal pace for 5Ks, 10Ks, half marathons, or full marathons. Train smarter with personalized race goals based on time or distance.
Train smarter with Kaizen’s running pace calculator
Whether you’re chasing a new 5K personal best or building up to your first marathon, nailing your pace is essential. Kaizen’s Running Pace Calculator helps you train with purpose, by giving you clear, personalized pacing guidance based on your goals.
Avoid burning out
Starting too fast can derail your race. The right pace keeps you steady and strong to the finish.
Reach your potential
Knowing your target splits helps you push just enough to set a new PB, without blowing up mid-race.
Train responsibly
Calculate your limits so that you don't overdo it in training and mitigate injury risk.
The ultimate pacing FAQ
All you need to know about pacing your next race
General questions about pacing
5k pacing: How to pace a 5k
10k pacing: How to pace a 10k
Half Marathon pacing: How to pace a Half Marathon
Marathon pacing: How to pace a Marathon
Pace calculator comparison
Find out how Kaizen’s pace calculator stacks up against other tools and why it’s built for real training, not just quick estimates.
Features
Kaizen Pace Calculator
Strava Pace Calculator
Runna Pace Calculator
Accuracy
Metric/Imperial Unit Support
Mobile-Friendly Design
Auto Recalculate
Easy Pace Adjustments
Pace ↔ Time Conversion
Time ↔ Pace Conversion
Download as PDF and CSV
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Top 10 Fastest
Marathons
If you’re aiming for a personal best, consider participating in one of these top-rated marathons known for their favorable courses:
Osaka Marathon
Asia
February
Great
0.71
Nagoya Women's Marathon
Asia
March
Great
1.01
Valencia Marathon

Map
Europe
December
Great
1.18
Tokyo Marathon

Map
Asia
March
Great
1.27
Dubai Marathon
Asia
January
Great
1.47
Frankfurt Marathon
Europe
October
Great
1.59
Indianapolis Monumental Marathon
North America
November
Great
1.60
Rotterdam Marathon

Map
Europe
April
Great
1.64
Paris Marathon

Map
Europe
April
Great
1.78
Milan Marathon

Map
Europe
April
Great
1.85