Pace Calculator
Running and walking pace calculator
This free Pace Calculator answers the three questions runners, walkers and cyclists ask constantly, in whichever direction you need. Give it a time and a distance and it returns your pace per kilometre or mile, together with your average speed. Give it a pace and a distance and it predicts your finish time, which is perfect for planning a 5K, 10K, half marathon or marathon attempt. Give it a time and a pace and it tells you how far you will get, which helps when you have a fixed lunch break and a target pace to hold.
Pace and speed describe the same effort in opposite ways: pace is time divided by distance, speed is distance divided by time. Runners usually think in pace because it maps neatly onto course markers, while most other sports quote speed. The unit switch flips every input and result between kilometres and miles without you converting anything by hand, so a goal written as minutes per mile can be checked against a course measured in kilometres. All the maths happens locally in your browser, and nothing you enter is uploaded or stored.
How to use
- Choose what you want to find: pace, finish time or distance.
- Select kilometres or miles as your distance unit.
- Fill in the two values the calculator asks for.
- Click Calculate to see the third value worked out for you.
- Switch the question at any time; the fields shown change to match.
Frequently asked questions
What is a good pace for a beginner 5K?
Any pace that gets you to the finish is a good start. Many new runners complete 5K somewhere between seven and nine minutes per kilometre. The most reliable way to improve is consistency: regular easy runs gradually bring the same effort down to a faster pace.
How do I convert minutes per kilometre to minutes per mile?
Multiply by 1.609. A pace of six minutes per kilometre becomes about nine minutes forty seconds per mile. Or simply flip the unit switch in this calculator and re-enter your values, which avoids the arithmetic entirely.
Why does the calculator also show speed?
Treadmills, cycling apps and many watches display speed rather than pace, so showing both lets you set gym equipment or compare devices without a separate conversion. Speed in units per hour is just sixty divided by your pace in minutes per unit.
Can I use this for race distances like a marathon?
Yes. Enter 42.195 for a marathon in kilometres, or 26.219 in miles, along with your target pace or time. Remember real races rarely run perfectly even splits, so treat the prediction as a planning guide rather than a promise.