Case 1
- How far did you run?
- 10km
- Hours
- 0h
- Minutes
- 50min
- Seconds
- 0s
5.00min/km
Open with these valuesRunning Pace Calculator
5.00min/km
Result: 5.00 min/kmPace is time divided by distance: 50 minutes over 10 km is 5.00 min/km. The result is in decimal minutes, so 5.69 min/km means 5 minutes and about 41 seconds per kilometre. Use the solve toggles to turn the question round and ask for the distance or the minutes instead.
The numbers at a glance
Held fixed: How far did you run? 10.0000 km, Hours 0 h, Minutes 50 min.
| Seconds (s) | Result (min/km) |
|---|---|
| 0Your value | 5.00 |
| 2 | 5.00 |
| 4 | 5.01 |
| 6 | 5.01 |
| 8 | 5.01 |
| 10 | 5.02 |
| 12 | 5.02 |
| 14 | 5.02 |
Worked examples
Case 2
- How far did you run?
- 21.0975km
- Hours
- 1h
- Minutes
- 45min
- Seconds
- 0s
4.98min/km
Open with these valuesCase 3
- How far did you run?
- 42.195km
- Hours
- 4h
- Minutes
- 0min
- Seconds
- 0s
5.69min/km
Open with these valuesHow it's calculated
pace = total minutes ÷ distance in km
- StepEnter the distance — 21.0975 for a half marathon, 42.195 for a marathon.
- StepEnter the finish time across the three time fields.
- StepRead the pace in decimal minutes per kilometre.
- ResultMultiply the part after the point by 60 to get the seconds: 0.69 → 41 s.
What this number means
The result is always minutes per kilometre
A pace in minutes per mile is a different number: 8 min/mi is 4.97 min/km. The two cannot be compared directly.
Reading decimal minutes as a clock
Multiply the part after the point by 60 to get the seconds. 0.69 × 60 ≈ 41, so 5.69 min/km is 5:41 min/km.
It assumes a flat course at a steady pace
Every 1 % of gradient costs roughly 10–15 seconds per kilometre, and downhill sections do not give all of that back. For trails or hilly road races add 10–20 % to the projected finish time.
Turn the question round
The solve toggles ask for the distance or the minutes instead of the pace. The finish time itself is spread over the three fields for hours, minutes and seconds.
Commonly misread
Pace is distance divided by time.
Pace is time divided by distance — the inverse of speed. 50 minutes over 10 km is 5.00 min/km, and the faster runner has the lower number.
A pace of 5.69 min/km means 5 minutes and 69 seconds.
The result is in decimal minutes. 0.69 × 60 ≈ 41 seconds, so it reads 5:41 min/km.
A half marathon is 21.1 km, so I can round the distance.
The official length is 21.0975 km, and the marathon is 42.195 km. Rounded to a tenth, the pace lands about half a second per kilometre off.
Reference table
| Distance, h, min, s | Race and pace | Pace (min/km) |
|---|---|---|
| 5, 0, 25, 0 | 5 km in 25:00 — 5:00 min/km | 5.00 |
| 5, 0, 30, 0 | 5 km in 30:00 — 6:00 min/km | 6.00 |
| 10, 0, 45, 0 | 10 km in 45:00 — 4:30 min/km | 4.50 |
| 10, 0, 50, 0 | 10 km in 50:00 — 5:00 min/km | 5.00 |
| 21.0975, 1, 45, 0 | Half marathon in 1:45 — 4:59 min/km | 4.98 |
| 21.0975, 2, 0, 0 | Sub-2:00 half marathon — 5:41 min/km | 5.69 |
| 42.195, 4, 0, 0 | Sub-4:00 marathon — 5:41 min/km | 5.69 |
Questions
What is running pace?
Pace is the time it takes to cover one unit of distance, usually a kilometre. A pace of 5.00 min/km means every kilometre takes exactly five minutes. It is the inverse of speed: a faster runner has a lower pace number.
What pace do I need for a sub-2:00 half marathon?
A half marathon is 21.0975 km, so two hours works out at 7200 ÷ 21.0975 ≈ 341 s/km, that is 5:41 min/km or 5.69 in decimal minutes. Aim slightly faster, around 5:35–5:38 min/km, to keep something in reserve for the last three kilometres.
What pace is needed for a marathon under 4 hours?
A marathon is 42.195 km, so 14 400 seconds gives the same 5:41 min/km as the sub-2:00 half. The pace is identical; the difficulty is holding it for twice the distance, which is why many plans start at 5:45–5:50 and speed up later.
What pace do I need to run 5 km in 30 minutes?
1800 seconds over 5 km is 360 s/km — 6:00 min/km, or 6.00 here, which is 10.0 km/h. It is a common milestone for recreational runners and a realistic eight-week goal from around 7:00 min/km.
How accurate is this on a hilly course?
It assumes a flat course held at a constant pace. Every 1 % of gradient costs roughly 10–15 seconds per kilometre for a moderately fit runner, and downhill sections do not give all of that back. For trails or hilly road races add 10–20 % to the projected finish time.
Why is the result 5.69 and not 5:41?
The result is a number, so the pace comes out in decimal minutes. Multiply the fractional part by 60 to read it as a clock: 0.69 × 60 ≈ 41, so 5.69 min/km is 5:41 min/km.
Sources and last check
Information, not medical advice.