---
title: 'Running calculators'
url: 'https://www.dmcmillan.co.uk/running/calculators'
markdown: 'https://www.dmcmillan.co.uk/running/calculators.md'
date: '2026-10-25'
description: 'Running calculators A few tools I’ve built for planning my own running. Work out a session, compare race times or put a training schedule on the calendar.'
---

[← Running](https://www.dmcmillan.co.uk/running) 
# Running calculators

A few tools I’ve built for planning my own running. Work out a session, compare race times or put a training schedule on the calendar.

## Interval session

Add up reps, recoveries, warm-up and cooldown. All distances are in kilometres.

## Equivalent race times

Enter a recent race result to compare estimated times over other distances.

## Training-plan calendar

Choose an existing schedule and work backwards from your race date.

Plans from: [time-to-run plan collection](https://github.com/hoovercj/time-to-run)

These are reference schedules, not personalised coaching. Choose a plan that fits your current training and adapt it to your circumstances.

## Pace chart

A quick reference for kilometre and mile paces, distance splits and finishing times.

[Open the pace chart →](https://www.dmcmillan.co.uk/running/calculators/pace-chart)

---

## Navigation

- Parent: [Running](https://www.dmcmillan.co.uk/running.md)
- Children:
  - [Pace chart](https://www.dmcmillan.co.uk/running/calculators/pace-chart.md)