Pace Calculator
Calculate your running or walking pace and speed from distance and time. Get projected finish times for 5K, 10K, half marathon, and marathon distances to plan your race strategy.
How to Use This Pace Calculator
- Select your preferred unit: Kilometers or Miles.
- Enter the Distance you ran or walked (e.g., 5 for a 5K).
- Enter the Time it took using hours, minutes, and seconds.
- Click Calculate Pace to see your pace, speed, and projected race times.
Formula
Speed (km/h) = Distance (km) ÷ Time (hours)
To project a race time, multiply your current pace by the target race distance. For example, if your pace is 5:00 min/km, a marathon (42.195 km) projected time is 5:00 × 42.195 = 3:30:58.
Examples
Run 5 km in 25 minutes:
Pace = 25 × 60 / 5 = 5:00 min/km
Speed = 5 / (25/60) = 12.0 km/h
Run 10 km in 48 minutes:
Pace = 48 × 60 / 10 = 4:48 min/km
Speed = 10 / (48/60) = 12.5 km/h
At a 5:30 min/km pace:
Marathon time = 5.5 × 42.195 = 232.1 min = 3:52:06
Half marathon = 5.5 × 21.0975 = 116.0 min = 1:56:01
Frequently Asked Questions
What is pace?
Pace is the amount of time it takes to cover a specific distance, typically expressed as minutes per kilometer (min/km) or minutes per mile (min/mi). It is the inverse of speed and is the preferred metric for runners because it directly relates to effort level.
What is the difference between pace and speed?
Speed measures how far you go per unit of time (e.g., km/h or mph), while pace measures how long it takes to cover a unit of distance (e.g., min/km or min/mi). They are inverses of each other: higher speed means lower pace.
How can I improve my pace?
To improve your pace, incorporate interval training (alternating fast and slow segments), tempo runs (sustained effort at lactate threshold), long slow runs for endurance base, strength training for power, and adequate rest and recovery between hard sessions.
What is a good pace for beginners?
A beginner runner typically runs at 6:00–8:00 min/km (9:39–12:53 min/mi). There is no “good” pace—the right pace is one where you can hold a conversation. Focus on consistency and gradually decreasing pace over weeks and months.