While walking on the treadmill today – a great place/time to think, by the way – I started calculating exactly how long it would take, at a fixed-pace, to walk a mile.

My particular treadmill does this calculation for me, but with nothing to do but walk, I figured I’d work out the math anyway.

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We measure speed in miles per hour. There are 60 minutes in one hour. Here’s the basic equation for figuring out how long it takes to walk 1 mile, given a fixed speed.

60 minutes / x (minutes to walk 1 mile) = speed (in mph) / 1

Using 3.7 mph, let’s figure out how long it takes to walk one mile.

60 min / x = 3.7 mph / 1

A little old-school cross-multiplication yields

60 = 3.7x

x = 60/3.7

x = 16.22 minutes

We then need to convert the .22 minutes to seconds

60 seconds per minute * .22 minutes = 13 seconds

So, it takes **16 minutes 13 seconds** to walk **1 mile** at **3.7 mph.**

Here is a quick chart with speeds from 2 mph to 6.5 mph.

Speed Time (m/s)

2.0 0:30:00

2.1 0:28:34

2.2 0:27:16

2.3 0:26:05

2.4 0:25:00

2.5 0:24:00

2.6 0:23:04

2.7 0:22:13

2.8 0:21:25

2.9 0:20:41

3.0 0:20:00

3.1 0:19:21

3.2 0:18:45

3.3 0:18:10

3.4 0:17:38

3.5 0:17:08

3.6 0:16:40

3.7 0:16:13

3.8 0:15:46

3.9 0:15:23

4.0 0:15:00

4.1 0:14:38

4.2 0:14:17

4.3 0:13:57

4.4 0:13:38

4.5 0:13:19

4.6 0:13:02

4.7 0:12:45

4.8 0:12:30

4.9 0:12:14

5.0 0:12:00

5.1 0:11:45

5.2 0:11:32

5.3 0:11:19

5.4 0:11:06

5.5 0:10:55

5.6 0:10:42

5.7 0:10:31

5.8 0:10:20

5.9 0:10:10

6.0 0:10:00

6.1 0:09:50

6.2 0:09:40

6.3 0:09:31

6.4 0:09:21

6.5 0:09:13

Most treadmills will do these calculations for you, but it’s cool to re-visit some per-algebra once in a while. I rounded when making calculations, so I could be off by a second-or-two. Let me know if you find an error in my calculations. Be blessed.

I used some of the great information found at Fitness Math to verify my calculations.