Pace Calculator
Calculate running pace, time, and distance
Pace Calculator
Calculate running/walking pace, time, or distance
How to Use
Choose what you want to calculate, enter the known values, and click Calculate. Perfect for runners, walkers, and cyclists.
Privacy & Security
All calculations happen entirely in your browser using JavaScript. No running data, race times, pace information, or training details are ever uploaded to our servers, stored in databases, logged, or shared with anyone. Your training and racing data remains completely private and secure.
About Running Pace Calculator
Train smarter and race faster with our free running pace calculator designed for runners, joggers, walkers, coaches, and fitness enthusiasts. Whether you're planning race paces for a 5K, 10K, half marathon, or full marathon, calculating split times for interval training, converting between minutes per mile and minutes per kilometer, determining how long a run will take at your current pace, or setting realistic finish time goals, our tool handles all pace calculations instantly. Enter any two parameters (distance, time, pace) to find the third, get split times for every mile or kilometer, compare paces across different units, and plan your training runs with precision so you can hit your target pace on race day.
Key Features
Calculate Any Parameter
Enter any two of pace/time/distance to calculate the third automatically
Common Race Presets
Quick selection for 5K, 10K, half marathon, marathon, and other standard distances
Mile & Kilometer Support
Work in miles or kilometers with automatic conversion between units
Pace Unit Conversion
Convert between min/mile and min/km pace formats instantly
Split Time Calculator
Get mile splits or kilometer splits for your entire race distance
Multiple Pace Formats
Display pace as min:sec per mile/km or as mph/kph speed
Interval Training Support
Calculate paces for tempo runs, intervals, and recovery runs
Target Time Planning
Determine required pace to hit specific finish time goals
Negative Split Calculator
Plan negative split races with different first/second half paces
Export Pace Chart
Copy split times for printing or saving to your phone for race day
How to Use the Pace Calculator
Select Calculation Type
Choose what you want to calculate: pace, time, or distance
Enter Known Values
Input two of the three parameters (e.g., distance and time to find pace)
View Results
See calculated pace/time/distance with split times for each mile or kilometer
Plan Your Run
Use the results to set race goals, plan training runs, or track progress
Frequently Asked Questions
How is running pace calculated?
Pace is calculated by dividing time by distance: Pace = Time ÷ Distance. For example, if you run 5 miles in 40 minutes, your pace is 40 ÷ 5 = 8 minutes per mile (8:00/mile). Conversely, to find finish time, multiply pace by distance: a 10K (6.2 miles) at 8:00/mile pace takes 6.2 × 8 = 49.6 minutes (49:36). To convert between miles and kilometers, use 1 mile = 1.60934 km. A 8:00/mile pace equals approximately 4:58/km pace.
What's the difference between pace and speed?
Pace measures time per distance (minutes per mile or kilometer), while speed measures distance per time (miles or kilometers per hour). They're inverse relationships. A 8:00/mile pace equals 7.5 mph (60 minutes ÷ 8 minutes per mile). Runners typically use pace because it's easier to mentally divide miles and maintain consistent effort. For treadmills showing mph/kph, use our converter to translate your target pace to the correct speed setting.
What's a good running pace for beginners?
Good pace is relative to fitness level, but general guidelines: beginner runners often start at 11-13 min/mile (6:50-8:05/km) for easy runs, intermediate runners average 9-10 min/mile (5:35-6:15/km), advanced runners maintain 7-8 min/mile (4:20-5:00/km), elite runners race at 5-6 min/mile (3:06-3:44/km). More important than absolute pace is running at a comfortable effort where you can hold a conversation (easy pace), typically 1-2 min/mile slower than race pace. Focus on gradual improvement rather than comparing to others.
How do I use pace for race planning?
Start by determining your current fitness with a recent race or time trial. Use that to calculate realistic goal pace for your target race distance. For example, a 25:00 5K (8:03/mile pace) suggests you could run a half marathon at approximately 9:15/mile pace (accounting for longer distance requiring slower pace). Create a pace chart with split times for each mile. During the race, check your watch at mile markers to ensure you're on pace. Adjust as needed - start conservatively and speed up if you feel good (negative split strategy).
Why is my treadmill pace different from outdoor running?
Treadmill running is typically easier because: 1) The belt assists leg turnover, 2) No wind resistance, 3) Perfectly flat terrain, 4) Climate-controlled environment. Most runners find they need to set treadmill at 0.5-1.0 mph faster (or 1-2% incline) to match outdoor effort. Additionally, treadmill calibration can be off by 5-10%. If you run 8:00/mile outdoors, you might need to set the treadmill to 7.5 mph (8:00/mile equivalent) or 7.8 mph (7:42/mile) with 1% incline to simulate outdoor effort accurately.
What pace should I run for different workout types?
Different training runs require different paces: Easy runs should be 1-2 min/mile slower than race pace (conversational effort), Long runs at 0.5-1.5 min/mile slower than race pace, Tempo runs at 10K-half marathon race pace (comfortably hard), Intervals at 5K pace or faster with recovery jogs, Recovery runs at 2-3 min/mile slower than race pace (very easy). Use our calculator to determine specific paces based on your recent race times or goal times for optimal training.
Is this calculator free?
Yes! Our running pace calculator is completely free with unlimited calculations, no registration required, and no advertisements. All calculations happen instantly in your browser.
Can I use this for walking pace?
Absolutely! The calculator works for any activity - running, jogging, walking, hiking, or racewalking. Typical walking pace ranges from 15-20 min/mile (9:20-12:25/km) for casual walking, 12-15 min/mile (7:27-9:20/km) for brisk walking, and under 12 min/mile for powerwalking or racewalking. Enter your walking speed to calculate finish times for charity walks, hiking distances, or walking races.
Common Use Cases
- Race Pace Planning: Determine target pace needed to achieve specific finish times for 5K, 10K, half, or full marathon
- Training Run Planning: Calculate how long training runs will take at easy, tempo, or race pace
- Interval Training: Set precise pace goals for track workouts, fartlek runs, and interval sessions
- Progress Tracking: Compare current pace to past performances to measure improvement over time
- Race Strategy: Plan negative split strategies by calculating different first/second half paces
- Treadmill Conversion: Convert outdoor running pace to treadmill speed settings (mph or kph)
- Walking Pace: Calculate walking pace and finish times for walking races, charity walks, or hikes
- Distance Planning: Determine how far you can run in a given time at your current pace level
Why Use Our Running Pace Calculator?
Mental math for pace calculations is difficult, especially when converting between minutes/seconds, miles/kilometers, and dealing with decimal distance conversions like 6.2 miles for a 10K. Our free running pace calculator eliminates calculation errors and saves time by instantly computing accurate paces, times, and distances while handling all unit conversions automatically. Whether you're a beginner runner setting your first 5K goal, an experienced marathoner planning Boston qualifying pace, a coach creating training plans for athletes, or a walker planning charity event finish times, you need reliable pace data fast. Stop fumbling with spreadsheets, making math errors, or using imprecise estimates - just enter your two known values and get instant, accurate results with detailed split times ready for race day.