Find My Device: How It Works & How to Use It
- Average speed
- km/h
- Result
- Finish time
- 50 min
- You entered
- Distance
- 10 km
- You entered
Find My Device is a built-in service that helps you locate, lock, or erase a lost Android phone, tablet, or wearable. You sign in with your Google account, and the service shows the device’s current or last known location on a map, plays a sound, or lets you secure it remotely. This article explains how the service works, how to set it up, what to do when a device is missing, and answers common questions about privacy and accuracy.
Formula
The calculator above works out your average pace and speed from a finish time and distance. The formulas are:
- Average pace (min/km) = Finish time (minutes) ÷ Distance (km)
- Average speed (km/h) = Distance (km) ÷ (Finish time (minutes) ÷ 60)
Where:
- Finish time – total time taken, in minutes (e.g., 50 minutes)
- Distance – distance covered, in kilometers (e.g., 10 km)
- Average pace – minutes per kilometer, the usual way runners measure speed
- Average speed – kilometers per hour, the usual way drivers measure speed
Worked Example
Using the default values: finish time = 50 minutes, distance = 10 km.
- Average pace = 50 ÷ 10 = 5.00 min/km
- Average speed = 10 ÷ (50 ÷ 60) = 10 ÷ 0.8333 = 12.00 km/h
The calculator shows 5.00 min/km and 12.00 km/h, matching the example.
When to Use This Calculator
Use it after a run, bike ride, or walk to see your pace in the same units race organizers use. It is especially helpful when you have a target finish time for a race distance (e.g., a 5K or 10K) and want to know the pace you must hold. It also works in reverse: if you know your target pace, you can estimate a finish time.
How to Read the Result
A lower pace (e.g., 4:30 min/km) means faster running; a higher pace (e.g., 6:00 min/km) means slower. Speed in km/h is the opposite – higher is faster. For most runners, pace is more intuitive because it directly tells you how long each kilometer takes. For cyclists or drivers, speed in km/h is more familiar.
Common Mistakes and Limits
- Unit mix-ups – The calculator assumes kilometers. If your distance is in miles, convert to km first (1 mile = 1.60934 km) or the result will be wrong.
- Time in hours vs. minutes – Enter the total time in minutes, not hours and minutes separately. 1 hour 30 minutes = 90 minutes.
- Rounding – The calculator rounds to two decimal places. For pace, that’s fine for planning, but a stopwatch gives more precision.
- Not a race predictor – This calculator only converts time and distance. It does not account for fatigue, hills, weather, or training, so a pace that is possible for 5K may not be possible for a marathon.
Frequently Asked Questions
Can I use this calculator for miles?
Yes, but you must convert miles to kilometers first. Multiply the distance in miles by 1.60934 to get kilometers. For example, 5 miles × 1.60934 = 8.0467 km. Then enter that number in the distance field.
What is a good running pace for a beginner?
There is no single answer. A common beginner pace is around 6:30 to 8:00 min/km (about 10.5 to 7.5 km/h). It depends on age, fitness, and terrain. The best pace is one you can maintain comfortably while talking.
How do I convert pace to speed?
Divide 60 by your pace in minutes per kilometer. For example, a 5:00 min/km pace means 60 ÷ 5 = 12 km/h. The calculator does this automatically.
Does the calculator account for walking?
Yes. It works for any activity where you know the time and distance, including walking, hiking, or cycling. Walking pace is typically 8–12 min/km (5–7.5 km/h).
Why does the calculator show two decimals?
Two decimals give enough precision for planning without being overly complex. For pace, 0.01 min/km is about 0.6 seconds per kilometer, which is more accurate than most watches display.