# Marathon Pace Calculator

URL: https://speedycalculator.com/calculators/sports/marathon-pace/
Last updated: 2026-10-25

> The marathon pace calculator gives the pace per kilometre and mile needed to finish a marathon or half marathon in your goal time, and the split times at key distances.

## Inputs

- Goal time (min, h)
- Race

## Results

- Pace
- 10 km split
- Halfway split
- 30 km split

## Formula

```
Pace = goal time ÷ race distance
```

## Explanation

Even pacing is the most efficient way to run a marathon; going out too fast is the most common mistake.

### How to use the Marathon Pace Calculator

- **Goal time**
- **Race**
- Want to work backwards? Type a value into **Pace** and **Goal time** is calculated for you.

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Divide your goal time by 42.195 km (or 21.0975 km) to get pace, then multiply by checkpoint distances for splits.

### Inputs explained

FieldWhat to enterGoal timeUnits: min, hRaceChoose one: Marathon (42.195 km), Half marathon (21.0975 km)

### What each result means

- **Pace** = [Goal time]÷[Race]
- **10 km split** = [Goal time]÷[Race]×10×60
- **Halfway split** = [Goal time]÷2×60
- **30 km split** = [Goal time]÷[Race]×30×60

## Worked example

Inputs — Goal time: 240 min; Race: Marathon (42.195 km).

Results — **Pace = 5:41**; 10 km split = 56:53; Halfway split = 2:00:00; 30 km split = 2:50:38.

## FAQ

**What pace is a sub-4 marathon?**
About 5:41 per km (9:09 per mile).

**Should I run negative splits?**
Many runners aim for an even or slightly faster second half.

**What formula does the Marathon Pace Calculator use?**
Pace = goal time ÷ race distance.

**Can I work backwards from the result?**
Yes. Type the result you want into Pace and the calculator finds the matching goal time.