Target pace calculator

Calculate the pace you need

Most pace calculators start with your pace and tell you when you will finish. This one works the other way around: you set your goal finish time and the distance, and it tells you exactly what pace you need to maintain to get there.

This is useful when training towards a specific target — for example, breaking 2 hours for a half marathon or finishing a 10K in under 50 minutes. The required pace becomes a concrete number you can programme into your GPS watch as a target alert. If you do not yet have a goal time and want to predict what you are capable of based on a recent race, start with the race time predictor first.

A few things to keep in mind when using a target pace:

• Start slightly slower than target pace — most runners go out too fast and pay for it late in the race
• Account for elevation — uphill kilometres will be slower; you can make up time on downhill sections
• Build in a small buffer — aim for a pace 5–10 seconds per km faster than the minimum required, so minor slowdowns do not cost you the goal

Frequently asked questions

What is a target pace calculator?

A target pace calculator (sometimes called a reverse pace calculator) works backwards from a goal finish time. Instead of asking "if I run at this pace, when do I finish?", it answers "to finish in this time, what pace do I need?" — useful when training towards a specific race goal.

How do I use this to plan my race strategy?

Enter your goal finish time and the race distance. The calculator shows the exact pace you need to hold for every kilometre (or mile). Many runners use this to set their GPS watch alert so they know immediately if they are running too fast or too slow.

Should I run negative splits?

Negative splits — running the second half of a race faster than the first — is one of the most effective race strategies for endurance events. Most personal bests are set with even or slightly negative splits. Going out too fast in the first half is one of the most common race mistakes.

What if my pace varies throughout the race?

This calculator gives you a perfectly even pace across the whole distance. In practice, most runners go slightly slower uphill and faster downhill. The calculated pace is the average you need to maintain — treat it as a target, not a rigid rule.