Running Pace & Marathon Finish Time Calculator

Set any two of pace, distance and time — get the third. Check your 5K goal pace, or what your last run's splits really mean.

Pace (min per unit)

min sec

Distance (km) Time

h min sec

—

Embed this tool on your website / blog No code required · Copy and paste

<iframe src="https://lucentool.com/running-pace-calculator" width="100%" height="650" style="border:1px solid #e5e0d8;border-radius:12px;max-width:850px;width:100%;" frameborder="0"></iframe>
<div style="font-size:12px;color:#78716c;margin-top:6px;font-family:sans-serif;">Powered by <a href="https://lucentool.com/running-pace-calculator" target="_blank" style="color:#c85a32;text-decoration:none;">Lucentool - Running Pace & Race Finish Calculator</a></div>

HTML Embed Code (iframe):

<iframe src="https://lucentool.com/running-pace-calculator" width="100%" height="650" style="border:1px solid #e5e0d8;border-radius:12px;max-width:850px;width:100%;" frameborder="0"></iframe>
<div style="font-size:12px;color:#78716c;margin-top:6px;font-family:sans-serif;">Powered by <a href="https://lucentool.com/running-pace-calculator" target="_blank" style="color:#c85a32;text-decoration:none;">Lucentool - Running Pace & Race Finish Calculator</a></div>

Pace math

Pace = time ÷ distance (min per km or mile) — the number runners actually pace by
Speed = distance ÷ time (km/h) — what bike computers show
The calculator fills the missing third value: enter pace + distance for finish time, pace + time for distance, or distance + time for pace

Reference paces

10K in 55 min ≈ 5:30/km (8:51/mi)
Marathon (42.2 km) in 4 h ≈ 5:41/km
5K in 25 min ≈ 5:00/km
Walking briskly ≈ 11–12 min/km (≈ 5 km/h)

Running Pace & Marathon Finish Time Calculator

Pace math

Reference paces

Related & Recommended Tools