Run Pace Calculator - Online Min/Mile & Min/Km Splits

Running pace is calculated by dividing your total time by the distance covered. For example, if you run 5K in 25 minutes, your pace is 25 ÷ 5 = 5:00 min/km. Use the Calculate Pace tab above — simply enter your distance and finish time, and the calculator instantly shows your pace in both min/km and min/mile.

To convert min/km → min/mile, multiply by 1.609344. To convert min/mile → min/km, divide by 1.609344. For example, 5:00 min/km ≈ 8:03 min/mile. Our calculator does this instantly — check the Pace Conversion card above whenever you calculate a pace.

A "good" pace varies by fitness level, age, and goals. Generally, beginner runners might aim for 6:00–7:30 min/km (9:40–12:00 min/mile) for easy runs. Intermediate runners often run at 4:30–5:30 min/km (7:15–8:50 min/mile). The key is consistency and gradual improvement — use this pace calculator to track your progress over time.

Split times help you maintain even pacing throughout a race. For a marathon, check your time at every 5K marker against your target splits. Running even or slightly negative splits (second half faster) is considered optimal. Use the Split Times table above to see exactly when you should reach each checkpoint based on your goal pace.

Pace is the time taken per unit of distance (e.g., 5:00 min/km), while speed is the distance covered per unit of time (e.g., 12 km/h). Runners typically use pace because it's easier to track during a run — you can check your watch and know if you're on target. To convert: speed (km/h) = 60 ÷ pace (min/km).

Pace calculators provide theoretical predictions based on even pacing. In reality, factors like terrain, weather, nutrition, and fatigue affect performance. A common rule of thumb: your marathon pace is typically 10–20% slower than your half-marathon pace. Use this calculator as a planning tool, but always adjust based on your training and race-day conditions.