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Target race pace calculator

Work out the pace and speed needed to finish a race in a target time.

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Enter Distance (km), Target time (minutes) and the Target race pace calculator works out Pace (min/km), Speed (km/h) straight away. For instance, with Distance (km) = 42.2 km and Target time (minutes) = 240 min it returns Pace (min/km) = 5:41 and Speed (km/h) = 10.55 km/h.

How to use it

  1. Enter your values: Distance (km), Target time (minutes).
  2. Read the result instantly: Pace (min/km), Speed (km/h).

Frequently asked questions

How does the Target race pace calculator work?

It takes Distance (km) and Target time (minutes) and derives Pace (min/km) and Speed (km/h) from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

2 values: Distance (km) (km) and Target time (minutes) (min). Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Distance (km) = 42.2 km and Target time (minutes) = 240 min, the calculator returns Pace (min/km) = 5:41 and Speed (km/h) = 10.55 km/h. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Distance (km) = 46.4 km and Target time (minutes) = 480 min instead, Speed (km/h) goes from 10.55 km/h to 5.8 km/h — which is why it is worth testing a few scenarios rather than trusting a single figure.

Which units should I enter the values in?

Enter Distance (km) km and Target time (minutes) min. Metric and US units are both supported — switch system and the figures convert for you.

What does it give for smaller values?

Scaled down to Distance (km) = 38 km and Target time (minutes) = 120 min, Speed (km/h) comes out at 19 km/h. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Preparing a race: the pace a target time needs, the splits to hold it, and the training zones that sit under it — on foot, and equally on a bike or in a pool, where the same session is measured in watts or in a hundred-metre split instead.

What is the most common mistake?

Scaling a time linearly to a longer distance. A marathon is not two half-marathons; race predictors use an exponent around 1.06 precisely because fatigue is not proportional.

What is the difference between the Target race pace calculator and the Race time predictor?

This one returns Speed (km/h); the Race time predictor returns Predicted time. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Pace Calculator is the closest one after this: Compute your running pace (min/km) and average speed from distance and time.

Further reading

All guides →
GuideHow to Pace a 5KDivide your goal time by 5 to get the pace to hold, then run even splits. Here's how to find your target pace, train for it, and race it well.How-toHow to Calculate Your Running PaceRunning pace is time per kilometre or mile. Here's how to work it out from any run, convert between units, and use it to pace a race without blowing up.GuideHow to Pace Your SwimSwimming pace is measured per 100 metres. Here's how to work it out, why even pacing wins, how the pace clock helps, and how to get faster.How-toHow to Predict Your Race Time With the Riegel FormulaUse a recent race result and the Riegel formula to predict your finish time at a longer distance — from a 5K to a 10K or half marathon.ExplainerTarget Heart Rate for Training: Zones ExplainedLearn how to estimate your maximum heart rate, use the Karvonen formula and train in the right zones so every session hits its intended intensity.ExplainerMaximal Aerobic Speed: The One Number That Sets Every Training PaceMaximal aerobic speed is the slowest speed at which you reach your VO2max. Because it is a speed and not a heart rate, every training zone becomes a percentage of something you can measure on a track — and the whole week falls out of one test.