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06 Numbers and Powers

Apple Buys Face Recognition Startup? Facts

Card No. 06·4616 · Updated · Standard formula, shown below

Average pace 5.00 min/km
Average speed
12.00 km/h
Result
Finish time
50 min
You entered
Distance
10 km
You entered
You enter
Finish time, Distance
You get
Average pace, Average speed
Rounding
2 dp

Yes, Apple acquired a face recognition startup, but not the one you may have heard about recently. The most significant purchase was RealFace, an Israeli facial recognition company, in 2017, which helped lay the groundwork for Face ID. This article explains what Apple actually bought, why it matters, and how it fits into the broader history of Apple’s face recognition technology.

Formula

The calculator above works out your average pace and speed for a run, cycle, or walk. You enter your finish time (in minutes) and the distance covered (in kilometers). The calculator then divides the time by the distance to give your pace in minutes per kilometer, and divides the distance by the time (converted to hours) to give your average speed in kilometers per hour.

Pace (min/km) = T / D

Speed (km/h) = D / (T / 60)

Where:

  • T = total time in minutes
  • D = distance in kilometers

Worked Example

Using the default values: you finish a 10 km run in 50 minutes.

Step 1: Calculate pace: 50 ÷ 10 = 5.00 min/km.

Step 2: Convert time to hours: 50 ÷ 60 = 0.8333 hours.

Step 3: Calculate speed: 10 ÷ 0.8333 = 12.00 km/h.

So your average pace is 5:00 per kilometer, and your average speed is 12.00 km/h.

When to Use This Calculator

Use this tool when you want to know your training pace for a specific distance, or when you need to compare efforts across different distances. Runners often use pace to set targets, while cyclists may prefer speed. The calculator works for any distance and time combination, as long as you use minutes for time and kilometers for distance. If you use miles, simply convert miles to kilometers (1 mile = 1.60934 km) before entering the distance.

Reading the Results

The first result, pace, is the most common metric for runners. A lower pace means faster running. For example, 5 min/km is faster than 6 min/km. The second result, speed, is more intuitive for cyclists and drivers. Note that pace and speed are inversely related: as pace decreases, speed increases. The calculator rounds to two decimal places, which is sufficient for training purposes.

Common Mistakes

The most frequent error is mixing units. If you enter a distance in miles but the calculator expects kilometers, your pace will be wrong. Always convert to kilometers first. Another mistake is entering time in hours instead of minutes. If you ran for 1 hour 30 minutes, enter 90, not 1.5. Also, remember that this calculator gives average pace, not instantaneous pace. Your actual pace during a run will vary due to hills, wind, and fatigue.

Limitations of the Formula

This simple formula assumes a constant speed throughout the activity. It does not account for pauses, elevation changes, or the difference between running on a track versus a trail. For most recreational purposes, the average pace is still a useful metric. For serious athletes, GPS watches and apps provide more detailed data, but this calculator gives you a quick, reliable estimate.

Frequently Asked Questions

How do I convert my pace from min/km to min/mile?

Multiply the pace in min/km by 1.60934. For example, 5 min/km × 1.60934 = 8.05 min/mile. Conversely, divide min/mile by 1.60934 to get min/km.

What is a good running pace for a beginner?

It varies by age, fitness, and gender. A common guideline is that a beginner might run at 7–9 min/km, while a recreational runner might run at 5–6 min/km. Focus on effort, not a specific number.

Can I use this for walking?

Yes, the formula works for any activity where you cover a distance over time. Walking pace is typically 10–15 min/km, depending on speed.

Why is my speed in km/h not simply 60 divided by my pace?

It actually is. Since pace is minutes per km, speed in km/h is 60 divided by pace (in min/km). For example, 60 ÷ 5 = 12 km/h. The calculator does this conversion internally.

Does this calculator work for cycling?

Yes, it works for any distance-based activity. Cyclists often use speed in km/h, while runners use pace. The calculator gives both.

Related

Formula used
in t | Finish time | min | 50 | 0
in d | Distance | km | 10 | 0 | 100000
out pace | Average pace | min/km | t / d | 2
out speed | Average speed | km/h | d / (t / 60) | 2

Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

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