How to use it
Fill in any two fields and the third calculates itself. Set a distance and a target time to find the pace you need to hold; set a distance and a pace to find your finish time.
The splits table underneath shows what that same pace produces over 5K, 10K, half marathon and marathon — useful for sanity-checking a goal before you commit to it.
Pace, and why runners get it wrong
Pace is time per unit of distance — minutes per kilometre in Britain, minutes per mile if you grew up on road signs. Speed is the opposite: distance per unit of time.
The mistake almost everyone makes is running easy days at a pace that is not easy. If you cannot hold a conversation, you are running a session rather than recovering from one — and the fitness comes from the recovery as much as the work.
Common questions
How do I calculate running pace?
Divide your time by the distance. A 30-minute 5K is 30 ÷ 5 = 6:00 per kilometre. The calculator above does it in both kilometres and miles.
What is a good running pace for a beginner?
Anywhere between about 7:00 and 8:00 per kilometre is a normal starting point, and walking breaks are completely standard. Pace matters far less than turning up regularly.
How do I convert min/km to min/mile?
Multiply your pace per kilometre by 1.609. So 6:00/km is roughly 9:39 per mile.
More running tools
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