Google Circle to Search: How It Works

Google Circle to Search is a gesture-based search feature that lets you search anything on your Android phone screen by circling, highlighting, or tapping it. You activate it by long-pressing the home button or gesture handle, then draw around the item you want to learn about—no need to switch apps or take a screenshot. It works on any screen, including apps, photos, and videos, and returns Google Search results in a panel at the bottom.

Formula

The calculator above computes your average pace and speed from a given distance and finish time. The formulas are:

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

Where:

• Finish time (t) – the total time taken, in minutes.
• Distance (d) – the distance covered, in kilometers.
• Pace – the time needed to cover one kilometer, in minutes per kilometer.
• Speed – the average speed, in kilometers per hour.

Worked Example

Using the default values (50 minutes for 10 km):

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

The calculator shows a pace of 5.00 min/km and a speed of 12.00 km/h.

When to Use This Calculator

Use this tool when you finish a run, bike ride, or walk and want to know your average pace or speed. It’s especially useful for training: if you plan to run 10 km in 50 minutes, you know you need to hold a 5:00 min/km pace. You can also work backward—enter a target pace and distance to find the finish time.

How to Read the Results

The first output is pace, shown as minutes per kilometer (min/km). A lower pace means faster running. The second output is speed in kilometers per hour (km/h), which is more common for cycling or driving. For example, 5 min/km equals 12 km/h. If you use miles, convert distance to kilometers (1 mile = 1.60934 km) or use a pace calculator that supports miles.

Common Mistakes

• Mixing units: Entering distance in miles but using minutes per kilometer gives a wrong pace. Always convert to the same unit system.
• Decimal time errors: If you run 1 hour 30 minutes, enter 90 minutes, not 1.30.
• Rounding too early: Keep at least two decimals during intermediate steps to avoid errors.

Limitations of the Formula

This calculator gives an average pace assuming a constant speed. Real runs have hills, stops, and varying effort. It doesn’t account for elevation gain, wind, or heart rate. For interval training, you’d need separate splits. Also, the formula is purely mathematical—it doesn’t include any physiological factors.

Frequently Asked Questions

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

Multiply the minutes per kilometer by 1.60934. For example, 5 min/km × 1.60934 = 8.05 min/mile (about 8:03 per mile).

What is a good pace for a beginner?

A common beginner running pace is around 7–8 min/km (11–13 km/h). But “good� depends on age, fitness, and distance. A 10 km run at 7 min/km gives a finish time of 70 minutes.

Can I use this for walking?

Yes. Walking pace typically ranges from 10 to 15 min/km (4–6 km/h). Enter your walking time and distance to get your average.

Why is my pace different from my treadmill’s?

Treadmills often show speed in km/h or mph, and the pace is derived from that. Outdoor running includes wind resistance and terrain, so your pace on a treadmill may be slightly easier. Also, treadmill calibration can vary.

How do I calculate pace for a marathon?

Marathon distance is 42.195 km. If you want to finish in 4 hours (240 minutes), your pace is 240 ÷ 42.195 = 5.69 min/km (about 5:41 per km). Use this calculator with d=42.195 and t=240.

Does the calculator work for cycling?

Yes, you can enter any distance and time. For cycling, speed is usually more relevant than pace. The speed output in km/h is directly useful.

Related

• Summerland Bank Home Contents Plus for Strata Owners
• Time Capacity Planning Software: How to Choose
• Tire Circumference Calculator: How to Calculate

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