VanoorCalculators
Running calculators
Pace, race times, splits and heart-rate zones, worked out in your browser. The race plans and zones can go straight to Vanoor on your Apple Watch. For running advice, see the blog.
Running pace calculator: pace, time, distance and speed
Free running pace calculator. Enter two of distance, time and pace to get the third, in min/km and min/mile, with speed and race times.
Read →Race time predictor: from one race to your next
Predict your 5K, 10K, half marathon and marathon times from one recent race, with the Riegel formula, its known limits, and the pace to aim for.
Read →Negative split calculator: plan your race splits — and run them on your Apple Watch
Free negative split calculator: goal time and distance in, km-by-km splits out — negative, even or positive. When each wins, and how to run it on Apple Watch.
Read →Half marathon pace chart: pace per km and per mile, with 5K/10K/15K/20K splits for every goal time
Half marathon pace chart from 1:15 to 3:00: pace per km and per mile, 5K, 10K, 15K, 10-mile and 20K split times — and how to run the plan on Apple Watch.
Read →Marathon pace chart: pace per km and per mile, with 10K, halfway, 30K and 40K splits for every goal time
Marathon pace chart from 2:30 to 6:00: pace per km and per mile, 10K, halfway, 30K, 20-mile and 40K split times — and how to run the plan on Apple Watch.
Read →Heart rate zones calculator for runners — built on the published research, not a rule of thumb
Heart rate zones calculator: age or measured max, resting HR, Karvonen or %max, five zones from peer-reviewed research, and how to run them on Apple Watch.
Read →Zone 2 running: what it is, your zone 2 heart rate, and how to hold it on Apple Watch
Zone 2 running explained: a zone 2 heart rate calculator (three methods), a chart by age, why it feels so slow, and how to hold it on your Apple Watch.
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Vanoor: offline route navigation, race pacing and structured workouts on the Apple Watch you already own.
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