Free, easy-to-use calculators to help New Zealand runners plan races, set training paces and track fitness. Pick a tool below — each one gives you instant results from just a couple of inputs.
Work out your pace, finish times and splits for any race distance.
Predict your 5K, 10K, half and marathon times from a recent race.
Estimate your VO2 max and VDOT fitness score from a race result.
Find your 5 training heart rate zones using the Karvonen method.
Get your easy, threshold, interval and rep paces from a race time.
See your age-graded score and how you compare across all ages.
Estimate how many calories you burn on a run by weight and pace.
Find your next NZ race in The Start Line by NZ Running.