🏃Running Pace Calculator

Calculate running pace, speed, and finish time for any distance.

Distance

Time (HH : MM : SS)

About Running Pace Calculator

The running pace calculator lets you solve for any one of three variables — pace, distance, and time — when you know the other two. Whether you're planning a 5K, half marathon, or full marathon race strategy, this tool converts between minutes per mile, minutes per kilometer, and miles/km per hour instantly. Use it to set realistic finish time goals and structure your training runs.

How to Use Running Pace Calculator

1
Choose what you want to calculate
Select whether you want to find your pace, your finish time, or the distance you covered.
2
Enter the two known values
Fill in the two variables you already know — the calculator solves for the third.
3
Plan your race or training run
Use the result to set mile splits, choose a treadmill speed, or plan a long run route.

Common Use Cases

Setting a target pace for an upcoming 5K or half marathon
Converting treadmill speed (mph) to per-mile pace
Planning easy vs. tempo run paces for a training schedule
Estimating finish times for races at new distances based on recent performance

Frequently Asked Questions

What is a good running pace for beginners?

A comfortable beginner pace is typically 12–15 minutes per mile (7:30–9:20 per km). The most important thing is running at a conversational pace — you should be able to speak in short sentences without gasping. As fitness improves over weeks, pace will naturally increase.

How do I calculate my target marathon pace?

A common rule of thumb is to run a marathon at roughly 30–45 seconds per mile slower than your half marathon race pace. Alternatively, use your recent 5K or 10K times with a race time predictor formula (like the Riegel formula: T2 = T1 × (D2/D1)^1.06) to estimate finish times at other distances.

What is the difference between pace and speed?

Pace is expressed as time per unit of distance (e.g., 9:00 per mile) — lower is faster. Speed is expressed as distance per unit of time (e.g., 6.7 mph) — higher is faster. Runners typically use pace; cyclists and most other sports use speed. The two are directly convertible.