Freeware OCR programs let you extract editable text from scanned documents, PDFs, and images without paying for a license. You upload or open an image or PDF, the software recognizes the characters, and you get copyable, searchable text. The best free options are Tesseract-based tools, Microsoft Office Lens, and the built-in OCR in Google Drive and Adobe Acrobat Reader.
Formula
The calculator works out your average pace and speed for a run or walk. You enter the total time in minutes and the distance in kilometers. The pace is the time divided by the distance, and the speed is the distance divided by the time in hours.
- Pace (min/km) = Time (minutes) ÷ Distance (km)
- Speed (km/h) = Distance (km) ÷ (Time (minutes) ÷ 60)
Both results are shown to two decimal places. The pace tells you how many minutes each kilometer takes; the speed tells you how many kilometers you cover in one hour.
Worked Example
Using the default values: you run 5 km in 30 minutes.
- Pace = 30 ÷ 5 = 6.00 min/km
- Speed = 5 ÷ (30 ÷ 60) = 5 ÷ 0.5 = 10.00 km/h
So your average pace is 6 minutes per kilometer, and your average speed is 10 kilometers per hour.
When to Use This Calculator
Use it after a run, walk, or bike ride to compare your effort across different distances. Runners often track pace to plan race times; walkers use speed to measure fitness improvements. The calculator works for any distance and time, as long as you keep the units consistent (minutes and kilometers). If you prefer miles, convert distance to kilometers first (1 mile = 1.60934 km).
How to Read the Result
A lower pace (e.g., 5:00 min/km) means you are faster than a higher pace (e.g., 7:00 min/km). Speed works the opposite way: a higher speed (e.g., 12 km/h) is faster than a lower one (e.g., 8 km/h). The pace result is the one most runners use, because it directly tells you how long each kilometer takes. The speed result is useful for comparing with cycling or driving speeds.
Common Mistakes
- Mixing units: If you enter time in hours and treat it as minutes, the pace will be wrong. Always convert hours to minutes (1 hour = 60 minutes).
- Rounding too early: Round only the final answer. If you round the pace to 6.0 and then compute speed from that rounded value, you may get 10.0 instead of 10.00.
- Ignoring rest stops: The calculator uses total time, including any stops. If you want moving pace, use only the time you were actually moving.
Limits of the Formula
The formula assumes a constant speed over the whole distance. Real runs have hills, traffic lights, and varying effort, so your instantaneous pace will fluctuate. The result is an average, not a prediction of what you can sustain. Also, the calculator does not account for elevation gain, weather, or fatigue – all of which affect real-world performance. For accurate training zones, consider a heart-rate monitor.
Frequently Asked Questions
What is a good pace for a beginner?
A comfortable running pace for a beginner is often between 7:00 and 9:00 min/km (about 6.7 to 8.6 km/h). This varies widely with age, fitness, and terrain. The best pace is one where you can hold a conversation while running.
How do I convert min/km to min/mile?
Multiply the min/km value by 1.60934. For example, 6:00 min/km is about 9:39 per mile (6 × 1.60934 = 9.656 minutes, which is 9 minutes and 39 seconds).
Why does the pace show 6.00 instead of 6:00?
The calculator displays pace as a decimal number of minutes. 6.00 means 6 minutes exactly. If you get 6.45, that is 6 minutes and 27 seconds (0.45 × 60 = 27 seconds).
Can I use this for walking?
Yes, the formula works for any activity where you cover distance over time. A typical walking pace is 12–20 min/km (3–5 km/h).
What if I run on a treadmill?
Treadmill speed is usually shown in km/h or mph. You can enter the distance shown on the treadmill and the time you ran. The calculator will give you the same pace and speed, which helps you compare outdoor and indoor efforts.