Toggle Extend Selection Mode: What It Does & How to Use

Toggle extend selection mode is a keyboard state that lets you select text or items continuously using only the arrow keys, without holding Shift. When active, it anchors your cursor at a starting point and extends the selection as you move, making it useful for precise selections on laptops, in spreadsheets, or when a mouse is impractical. This article explains how it works, how to turn it on and off, and when it beats the mouse.

Formula

The calculator works out your average pace and speed for a run or ride. Enter the finish time in minutes and the distance in kilometers, and it returns the pace in minutes per kilometer and the speed in kilometers per hour.

Pace = Time (min) ÷ Distance (km)
Speed = Distance (km) ÷ (Time (min) ÷ 60)

• Time (t) – total duration in minutes (e.g., 50 min)
• Distance (d) – total distance in kilometers (e.g., 10 km)
• Pace – minutes per kilometer, the usual running metric
• Speed – kilometers per hour, the usual cycling metric

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

The calculator shows an average pace of 5:00 per kilometer and an average speed of 12.00 km/h. That means you covered each kilometer in exactly five minutes.

When to Use This Calculator

Use it after a run, ride, or walk to get a quick, consistent measure of your effort. It is especially handy for training zones: a 5:00 min/km pace is roughly 12 km/h, which is a moderate pace for many recreational runners. You can also use it to plan a target time—if you want to run 10 km in 45 minutes, enter 45 and 10 to see what pace you need to hold.

How to Read the Result

The first output, pace, is the headline number. A lower pace means faster running. The second output, speed, is the same effort expressed in km/h—useful if you are comparing with a bike computer or treadmill display. Both are rounded to two decimals, so a pace of 5.00 min/km is exactly 5 minutes per kilometer; 5.03 would be 5 minutes and 1.8 seconds per kilometer.

Common Mistakes

• Entering time in hours and minutes instead of total minutes. 1 hour 30 minutes must be entered as 90, not 1.30.
• Mixing units: if you measure distance in miles, convert to kilometers first (1 mile = 1.60934 km). The calculator assumes km.
• Rounding too early: compute with the full time, not a rounded pace, to get accurate speed.

Limits of the Formula

This is an average calculation. It does not account for hills, stops, or uneven effort. If you run intervals, your actual pace varies, and the average may not reflect the difficulty. It also assumes a constant speed, which is rarely true outdoors. For most training purposes, the average is still a useful summary.

Frequently Asked Questions

How do I convert my pace to mph?

Divide 60 by your pace in minutes per kilometer, then divide by 1.60934. For a 5:00 min/km pace: 60 ÷ 5 = 12 km/h, then 12 ÷ 1.60934 = 7.46 mph.

What is a good running pace for a beginner?

Most beginners run between 6:30 and 8:00 min/km (about 7.5 to 9.3 km/h). The calculator can help you find your comfortable pace by entering a recent run.

Can I use this for walking?

Yes. A typical walking pace is 10 to 12 min/km (5 to 6 km/h). Enter your walk time and distance to get your average.

Why does the calculator show two decimals for pace?

Two decimals give a precise number for planning. A pace of 5.03 min/km is 5 minutes and 1.8 seconds, which is easier to compare than a single decimal.

Does the calculator account for elevation gain?

No. It only uses time and distance. Elevation gain affects effort but not the average pace calculation.

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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