Pace Calculator
Calculate running, walking, or cycling pace from distance and time.
The Formula
Time = Pace × Distance
Distance = Time / Pace
Speed (km/h) = 60 / Pace (min/km)
Pace = 52 / 10 = 5.2 min/km
= 5 min 12 sec per km
Speed = 60 / 5.2 = 11.5 km/h
Pace vs. Speed: What Is the Difference?
Pace and speed both describe how fast you are moving, but they express it differently. Pace is the time it takes to cover one unit of distance — most commonly minutes per mile (min/mi) or minutes per kilometer (min/km). Speed is the distance covered per unit of time — miles per hour (mph) or kilometers per hour (km/h). Runners typically think in pace. Cyclists usually think in speed. Our calculator lets you convert between all of these, plus estimate finish times for common race distances based on your pace.
Common Race Paces to Know
Here are some useful pace benchmarks: To finish a 5K (3.1 miles) in 30 minutes, you need a 9:39 per mile pace. To run a 5K in 25 minutes requires a 8:03 pace. A 2-hour half marathon requires a 9:09 per mile pace. A 4-hour full marathon requires a 9:09 per mile pace as well. A sub-3-hour marathon — the benchmark many serious runners aim for — requires holding a 6:52 per mile pace for 26.2 miles. Knowing these reference points helps you calibrate your training paces and set realistic race goals.
How to Use Pace in Training
Experienced runners use different paces for different types of runs. Easy runs (60–70% effort) build aerobic base and are typically 60–90 seconds per mile slower than race pace. Tempo runs (comfortably hard, 80–85% effort) improve lactate threshold and are run around your 1-hour race pace. Interval workouts mix hard effort at or faster than race pace with recovery jogs. Most training plans recommend that 80% of your weekly mileage be easy runs and only 20% be hard efforts — a ratio that minimizes injury risk while building fitness.
Frequently Asked Questions
What is a good running pace for beginners?
Any pace that allows you to hold a conversation is appropriate for easy running. For most beginners, that is somewhere between 10 and 14 minutes per mile. The goal early on is building the habit and the aerobic base, not hitting a specific time. As fitness improves over weeks and months, your comfortable pace naturally gets faster without additional effort.
How do I calculate my pace from a race time?
Divide your total race time in minutes by the distance in miles (or kilometers). A 5K finish of 28 minutes divided by 3.1 miles equals a 9:02 per mile pace. This calculator handles the arithmetic for you — just enter your time and distance and it shows your pace, speed, and projected finish times for other distances at the same effort.
What is negative splitting and why does it matter?
Negative splitting means running the second half of a race faster than the first. It is considered the optimal race strategy because it avoids going out too fast and fading in the later miles, which costs far more time than a conservative start. Most recreational runners go out too fast. Planning a conservative first-half pace and trusting you will have energy to push the second half is a skill that improves with experience.
How does incline affect pace?
Running uphill significantly increases effort without corresponding speed. A common rule of thumb is to add about 30 seconds per mile of pace for every 1% of grade increase, and subtract 15 seconds per mile for each 1% of downhill. Treadmill runners often use a 1% incline to simulate the air resistance of outdoor running on flat terrain.
How can I improve my running pace?
The most effective ways to get faster are consistent easy mileage (builds aerobic capacity), weekly tempo runs (raises lactate threshold), interval training (improves VO2 max and running economy), and adequate recovery. Strength training for the hips, glutes, and core also meaningfully improves running efficiency. Most beginner runners improve fastest simply by running more miles at easy paces consistently.