Speed Converter - Convert km/h, mph, m/s, knots & More

Unit	Symbol	Conversion Factor to m/s
cm per minute (cm/min)	cm_min	0.000166700
cm per second (cm/s)	cm_s	0.010000000
feet per hour (ft/h)	ft_h	0.000084667
feet per minute (ft/min)	ft_min	0.005080000
feet per second (ft/s)	ft_s	0.304800000
inches per minute (in/min)	in_min	0.000423333
inches per second (in/s)	in_s	0.025400000
kilometers per hour (km/h)	km_h	0.277777800
kilometers per second (km/s)	km_s	1,000.000000000
knots (nautical miles per hour)	kn	0.514444400
knots (UK)	kn_uk	0.514800000
meters per hour (m/h)	m_h	0.000277778
meters per minute (m/min)	m_min	0.016670000
meters per second (m/s)	m_s	1.000000000
miles per hour (mi/h)	mi_h	0.447040000
miles per minute (mi/min)	mi_min	26.822400000
miles per second (mi/s)	mi_s	1,609.344000000
speed of light (c)	c	299,792,458.000000000
yards per hour (yd/h)	yd_h	0.000254000
yards per minute (yd/min)	yd_min	0.015240000
yards per second (yd/s)	yd_s	0.914400000

Speed Converter – Convert km/h, mph, m/s, knots & More Easily

Have you ever been on a trip and saw a speed sign in “mph” instead of “km/h”? It can be confusing, right? You’re not alone.

That’s why we made this free Speed Converter. It helps you change speed from one unit to another in just a few clicks. Like going from km/h to mph, or m/s to knots. Simple and fast.

What Is a Speed Converter?

A speed converter is an online tool. It helps you understand how fast something is in different units. For example, you might know your speed in km/h, but need to see it in mph or m/s.

This tool makes that easy. You enter your speed, choose the units, and boom — the answer appears.

Why Would You Use It?

Imagine this — you’re driving in the US, and the sign says 60 mph. You’re used to km/h, so what does that mean? Or maybe you're in class, and your teacher talks about meters per second, but your book shows km/h.

This tool helps you in both situations. It’s like a little helper for travel, school, sports, or daily life.

Who Can Use It?

Travelers: See speed signs in a new country and understand them instantly.
Students: Convert speeds for assignments, tests, or lab work.
Runners and Cyclists: Track how fast you're going in your preferred unit.
Teachers: Use it for examples and classroom activities.
Pilots and Sailors: Convert knots to km/h or mph in seconds.
Curious minds: Anyone who wants to learn or double-check a value.

Common Speed Units Made Easy

km/h: Used in India, Europe, and many other countries.
mph: Common in the USA and UK.
m/s: Often seen in physics and science books.
ft/s: Sometimes used in engineering or technical work.
knots: Used by pilots and in boats or ships.

How It Works

The basic idea is simple. Speed means how far something goes in a certain time.

For example, if you walk 5 kilometers in 1 hour, your speed is 5 km/h.

To change units, the tool multiplies your number using standard formulas like:

1 km/h = 0.621371 mph
1 mph = 1.60934 km/h
1 m/s = 3.6 km/h
1 knot = 1.15078 mph
1 ft/s = 0.681818 mph

But don’t worry — you don’t need to remember any of this. The tool handles it for you.

Simple Examples

Example 1: You’re driving at 80 km/h. What’s that in mph?
Just type 80 and select km/h to mph. You’ll get 49.7 mph.
Example 2: A plane flies at 500 knots. What’s that in km/h?
Answer: 926 km/h.
Example 3: You run at 10 m/s. What’s that in km/h?
It’s 36 km/h.

How to Use This Tool

Type your speed (like 120)
Choose your current unit (like km/h)
Select the unit you want (like mph)
Click “Convert” — and you’re done!

Why People Love This Tool

No sign-up or login — just use it
Works on phone, tablet, or desktop
Instant results with no ads or popups
Easy design for everyone — young or old
Accurate results using real-world formulas
And yes, it’s totally free!

When It Comes in Handy

On vacations: Understand local speed limits
In sports: Track your cycling or running pace
In class: Use it for science homework or lab work
At work: Helpful for engineers and professionals
In the air or sea: Convert knots without any fuss

Helpful Tips

Use numbers like 10, 50, or 75.2 — avoid too many decimal points.
Know which unit you need before converting.
Check the examples above if you're unsure.
Bookmark the page. You’ll want it again soon!

FAQs – People Often Ask

It depends on where you are. Most countries use km/h. But the US and UK use mph.

It works online best. But if the page is still open, it may work offline too (depends on your browser).

Yes. You can use it as much as you like. No cost. No sign-up.

It supports km/h, mph, m/s, ft/s, and knots. We may add more in future.

Yes. It uses official conversion numbers. Perfect for learning or work.

Final Thoughts

Speed math can be tricky. But not anymore.

With this tool, you can convert any speed — in just seconds. It’s fast, simple, and made for real people like you.

Whether you’re a student, traveler, teacher, or just curious — this tool makes life easier.

Brought to you by SmartCalcZone — making daily tools smarter and friendlier.

🚀 Speed Converter - Convert km/h, mph, m/s, knots & More

Convert Speed Units

Units and Conversion Factors (to meters per second)