Free tool

Ultra pace calculator

The longer it gets, the smaller the math.

Type your ultra target time. We hand you the per-km and per-mile pace — though on a real trail ultra, expect to vary it wildly with terrain.

What do you want to know?
Units
1
What you ran
Pick a preset or type any distance.
km
Try:
2
How long it took
Hours, minutes, seconds.
Hours
Minutes
Seconds
Examples
Pace
5:00
min/km · 8:03 min/mi

You ran 10K in 50:00 — that's 5:00 per km.

Pace
5:00
Time
50:00
Distance
10.00 km
Find 10K races at this pace
Split times (10 km)

Common ultra targets

Ultra paces are slower than road races and vary hugely with terrain. Use these as a baseline, then adjust by 5-15% for elevation and surface.

목표 시간필요한 페이스메모
4:00:00 (50K)4:48/km · 7:43/miElite road 50K territory.
5:00:00 (50K)6:00/km · 9:39/miStrong amateur road 50K target.
6:00:00 (50K)7:12/km · 11:35/miA solid first 50K goal.
10:00:00 (100K)6:00/km · 9:39/miStrong trail 100K target on rolling terrain.
24:00:00 (100 mi)8:57/km · 14:24/mi100-mile sub-24 — a benchmark goal in trail ultras.
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