iOS 27 Public Beta: What to Know

iOS 27 public beta is Apple’s pre-release version of the next iPhone operating system, available to anyone with a compatible device who signs up through Apple’s Beta Software Program. You can install it now to try new features early, but expect bugs, battery drain, and app compatibility issues until the final release. Here’s what you need to know before you jump in.

Formula

The calculator works out your average pace and speed for a run, walk, or ride. Pace is the time it takes to cover one kilometer (or mile), and speed is the distance covered per hour. The formulas are:

• Pace (min per km) = Finish time (min) ÷ Distance (km)
• Speed (km/h) = Distance (km) ÷ (Finish time (min) ÷ 60)

Where finish time is in minutes, distance is in kilometers, pace is in minutes per kilometer, and speed is in kilometers per hour. If you use miles, convert distance to kilometers (1 mile = 1.60934 km) or interpret the result as min/mile and mph.

Worked Example

Using the default values: finish time = 50 minutes, distance = 10 km.

1. Pace = 50 ÷ 10 = 5.00 min/km
2. Speed = 10 ÷ (50 ÷ 60) = 10 ÷ 0.8333 = 12.00 km/h

So your average pace is 5 minutes per kilometer and your average speed is 12 km/h. That matches the calculator output.

When to Use This Calculator

Use it after any run, walk, or bike ride where you know the total time and distance. It’s handy for training, planning a race pace, or just seeing how fast you moved. For example, if you ran 5 km in 30 minutes, enter 30 and 5 to get a pace of 6:00 per km and a speed of 10 km/h. If you have a target pace, you can also work backwards to estimate finish time.

How to Read the Results

The first output is your pace, shown as minutes per kilometer. Lower numbers mean faster. The second output is speed in km/h; higher numbers mean faster. For most runners, a 5:00 min/km pace is about 12 km/h, which is a solid recreational speed. Walkers typically see paces around 10–12 min/km, and cyclists often see speeds over 20 km/h. The calculator ignores elevation, stops, and wind, so it gives a flat-ground average.

Common Mistakes

• Mixing units: If you enter distance in miles but time in minutes, the pace will be min/mile, not min/km. Convert to kilometers first for consistency.
• Using hours instead of minutes: The time field expects minutes. If you ran for 1 hour 10 minutes, enter 70, not 1.10.
• Rounding too early: Keep full precision until the final step to avoid small errors.

Limitations of the Formula

This is a simple average calculation. It doesn’t account for hills, terrain, or changes in pace during the activity. If you run intervals or stop for traffic, the average pace will be slower than your actual running pace. For precise training data, use a GPS watch or app that captures splits and elevation. The formula is best for steady, continuous efforts.

Frequently Asked Questions

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

Multiply the pace in min/km by 1.60934. For example, 5:00 min/km becomes about 8:03 per mile. To convert speed, multiply km/h by 0.621371 to get mph.

What is a good average pace for a beginner runner?

For a beginner, a comfortable pace is often 7:00–9:00 min/km (about 11–14 min/mile). That’s roughly 6.5–8.5 km/h. Focus on maintaining a conversational effort rather than hitting a specific number.

Can I use this calculator for walking?

Yes. Walking pace typically ranges from 10 to 15 min/km, depending on fitness and stride. The same formula works for any distance-based activity.

Why does my GPS watch show a different pace?

GPS devices calculate pace in real time using short intervals and may include pauses or elevation changes. This calculator uses total time and total distance, giving a true average. The difference is normal, especially on hilly routes.

How do I estimate finish time for a race?

Decide on a target pace in min/km, then multiply by the race distance. For a 10 km race at 5:30 min/km, the finish time is 55 minutes. Add a little extra for water stops or crowds.

What if I only know my speed in mph?

Convert mph to km/h by multiplying by 1.60934, then enter the distance in km and time in minutes. Or use the speed output to work backwards: if you know speed, time = distance ÷ speed × 60.

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