Running Tools
Free running calculators in one place: find the pace for your target finish time, plan a pace for weight loss, build an interval training chart, and set up Yasso 800 workouts. Enter distance and time to see your splits instantly.
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2026.10.01
New
Average Pace Calculator - Pace, finish times and track laps Calculate pace, compare distance times and view 400m track laps. 
2026.10.01
New
Weight Loss Pace Calculator - Seconds saved per kg See how weight change would affect your time. 
2026.10.01
New
Interval Training Chart - Skip the math, just plan and train Each row is one workout block. Distance and pace automatically calculate the total time. 
2026.10.01
New
Yasso 800 Calculator - Your goal time, turned into 10 reps Enter your marathon goal time to get 800m rep targets, recovery jog time, and cumulative time and distance for all 10 reps. 
2026.10.01
New
Pace Calculator - Finish times and speed from your pace Enter one pace to see your speed and finish times from 5K to the marathon.