Running calculators — VDOT, pace, heart rate & load

Create a running route

Generate or draw your own running route and share it.

Build a free personal running plan tailored to your goal.

Find your VDOT from a recent performance

Convert between pace, time, distance, and speed.

What pace do you need for your marathon goal time?

What pace do you need for your half marathon goal time?

Work out your five heart rate zones via max HR or the Karvonen method.

Calculate your acute:chronic workload ratio and injury risk.

Predict your time from 5K to marathon from one recent race.

Build a split table for your goal time, with even or negative splits.

Calculate the calories you burn running, including hills and terrain.