Pace = time ÷ distance. Running 10 km in 55 minutes is 5:30 per km, which is 8:51 per mile and 10.9 km/h. At that pace a half marathon (21.1 km) takes about 1 hour 56 minutes. Switch Metric or Imperial to work in kilometres or miles.
My Construction Calculator
Pace Calculator
Inputs
Results update as you type.
Diagram updates as you type.
Results
Check the working before you order.
Pace
5:30 per km
Pace per mi
8:51 per mi
Speed
10.91 km/h
Price This optional: add your own prices
Your prices are remembered on this device only.
Send Order WhatsApp, SMS or email to your supplier
Scan to open this calculationThe code links to this calculator with your inputs, so anyone can scan it with a phone camera and see the same result. Save it for a report, a site board or WhatsApp.Test copy: this code opens the live site, myconstructioncalculator.com, so it works on a phone once the site is launched.
Results are estimates for planning and material ordering only. They are not a substitute for structural design or approval by a qualified engineer. Read the full disclaimer.
Scan to open this calculation with the same inputs.
Generated with myconstructioncalculator.com. Estimates for planning and ordering only; verify against drawings and specifications.
Formula
Pace = time ÷ distanceTime = pace × distanceDistance = time ÷ paceSpeed = distance ÷ time (hours)1 mile = 1.609344 km
Worked Example
10 km in 55:00:
55 min = 3,300 s; 3,300 ÷ 10 = 330 s per km = 5:30 per km
Per mile: 330 × 1.609344 = 531 s = 8:51 per mile
Speed = 10 ÷ 0.9167 h = 10.9 km/h
Race Times at Common Paces
Pace per km
Pace per mile
5 km
10 km
Half marathon
Marathon
4:00
6:26
20:00
40:00
1:24:23
2:48:47
5:00
8:03
25:00
50:00
1:45:29
3:30:58
5:30
8:51
27:30
55:00
1:56:02
3:52:04
6:00
9:39
30:00
1:00:00
2:06:35
4:13:10
7:00
11:16
35:00
1:10:00
2:27:41
4:55:22
Frequently Asked Questions
How do I calculate my pace?
Divide your time by the distance. 55 minutes for 10 km is 5.5 minutes per km, which is 5 minutes 30 seconds per km.
How do I convert pace per km to pace per mile?
Multiply by 1.609. 5:30 per km (330 seconds) × 1.609 = 531 seconds, or 8:51 per mile. To go the other way, divide by 1.609.
How long will a marathon take at my pace?
Multiply your pace by 42.195 km (26.2 miles). At 5:30 per km that is 330 × 42.195 = 13,924 seconds, or 3:52:04.
How do I turn pace into speed?
Divide 60 by the pace in minutes. 5.5 minutes per km is 60 ÷ 5.5 = 10.9 km/h.
What is a good walking pace?
A brisk walk is often 9 to 12 minutes per km (about 15 to 19 minutes per mile), or 5 to 6.7 km/h.
Embed This Calculator on Your Website
Free for any website: contractors, suppliers, blogs and schools. Paste this code where you want the calculator to appear. It works in WordPress (Custom HTML block), Wix, Squarespace and plain HTML.
