Speed Converter - Convert m/s, km/h, mph, knots & More Units
Result:
1 m/s = 3.59999712 km/h
š„ Popular Converters
Quick access to most used tools
How Speed Conversion Works
Input Speed
Enter speed value
Select Units
Choose from and to units
Convert
Apply conversion formula
Speed Conversion Formulas
m/s to km/h
Formula: km/h = m/s Ć 3.6
Example: 10 m/s = 10 Ć 3.6 = 36 km/h
km/h to mph
Formula: mph = km/h Ć 0.621371
Example: 100 km/h = 100 Ć 0.621371 = 62.14 mph
mph to knots
Formula: kn = mph Ć 0.868976
Example: 60 mph = 60 Ć 0.868976 = 52.14 kn
ft/s to m/s
Formula: m/s = ft/s Ć 0.3048
Example: 30 ft/s = 30 Ć 0.3048 = 9.14 m/s
Speed Conversion Table
| m/s | km/h | mph | knots | ft/s | cm/s |
|---|---|---|---|---|---|
| 0.1 | 0.36 | 0.22 | 0.19 | 0.33 | 10.0 |
| 0.5 | 1.80 | 1.12 | 0.97 | 1.64 | 50.0 |
| 1 | 3.60 | 2.24 | 1.94 | 3.28 | 100.0 |
| 2 | 7.20 | 4.47 | 3.89 | 6.56 | 200.0 |
| 5 | 18.00 | 11.18 | 9.72 | 16.40 | 500.0 |
| 10 | 36.00 | 22.37 | 19.44 | 32.81 | 1000.0 |
| 15 | 54.00 | 33.55 | 29.16 | 49.21 | 1500.0 |
| 20 | 72.00 | 44.74 | 38.88 | 65.62 | 2000.0 |
| 25 | 90.00 | 55.92 | 48.60 | 82.02 | 2500.0 |
| 30 | 108.00 | 67.11 | 58.32 | 98.43 | 3000.0 |
| 40 | 144.00 | 89.48 | 77.75 | 131.23 | 4000.0 |
| 50 | 180.00 | 111.85 | 97.19 | 164.04 | 5000.0 |
| 75 | 270.00 | 167.77 | 145.79 | 246.06 | 7500.0 |
| 100 | 360.00 | 223.69 | 194.38 | 328.08 | 10000.0 |
| 150 | 540.00 | 335.54 | 291.58 | 492.13 | 15000.0 |
Speed Units Progression Chart
1 m/s
5 m/s
10 m/s
20 m/s
50 m/s
100 m/s
Practice Problems
Problem 1:
Convert 72 km/h to m/s
Solution: 72 Ć· 3.6 = 20 m/s
Problem 2:
Convert 60 mph to km/h
Solution: 60 Ć· 0.621371 = 96.56 km/h
Problem 3:
Convert 25 knots to mph
Solution: 25 Ć· 0.868976 = 28.77 mph
Problem 4:
Convert 15 m/s to ft/s
Solution: 15 Ć· 0.3048 = 49.21 ft/s
Problem 5:
Convert 500 cm/s to m/s
Solution: 500 Ć 0.01 = 5 m/s
What is Speed?
Speed tells us how fast something moves. It shows how much distance is covered in a certain time. For example, if a car travels 60 kilometers in 1 hour, its speed is 60 km/h.
Speed is different from velocity. Speed only tells us how fast, but velocity also tells us the direction. In daily life, we mostly use the word speed.
Simple Formula:
Speed = Distance Ć· Time
Example: 100 meters in 10 seconds = 10 m/s
Common Speed Units Explained
Meters per Second (m/s)
Used in science and sports. Shows how many meters traveled in one second.
Example: A person walks at 1.5 m/s
Kilometers per Hour (km/h)
Most common for cars and daily travel. Shows kilometers traveled in one hour.
Example: City driving at 50 km/h
Miles per Hour (mph)
Used in USA and UK. Shows miles traveled in one hour.
Example: Highway speed limit 65 mph
Knots (kn)
Used for ships and airplanes. One knot equals one nautical mile per hour.
Example: Airplane cruises at 500 knots
Feet per Second (ft/s)
Used in engineering and some sports. Shows feet traveled in one second.
Example: Baseball pitch at 130 ft/s
Centimeters per Second (cm/s)
Used for very slow movements or small objects.
Example: Snail moves at 0.03 cm/s
How to Use This Speed Converter
Step-by-Step Guide:
- 1Type your speed number in the "Value" box
- 2Choose what unit you have in the "From" dropdown
- 3Pick what unit you want in the "To" dropdown
- 4See your answer appear instantly below
Quick Tips:
- āYou can use decimal numbers like 2.5
- āThe result updates as you type
- āAll conversions are accurate and instant
- āWorks on phones, tablets, and computers
Common Speed Examples
Walking Speed
ā¢ Normal walk: 5 km/h (3.1 mph)
ā¢ Fast walk: 8 km/h (5 mph)
ā¢ Slow walk: 3 km/h (1.9 mph)
Running Speed
ā¢ Jogging: 10 km/h (6.2 mph)
ā¢ Running: 15 km/h (9.3 mph)
ā¢ Sprinting: 25 km/h (15.5 mph)
Cycling Speed
ā¢ Casual: 15 km/h (9.3 mph)
ā¢ Moderate: 25 km/h (15.5 mph)
ā¢ Fast: 35 km/h (21.7 mph)
Car Speed
ā¢ City: 50 km/h (31 mph)
ā¢ Highway: 100 km/h (62 mph)
ā¢ Fast highway: 130 km/h (81 mph)
Train Speed
ā¢ Local train: 80 km/h (50 mph)
ā¢ Express: 160 km/h (99 mph)
ā¢ High-speed: 300 km/h (186 mph)
Airplane Speed
ā¢ Small plane: 200 km/h (124 mph)
ā¢ Airliner: 900 km/h (559 mph)
ā¢ Jet fighter: 2000 km/h (1243 mph)
Where We Use Speed in Daily Life
Car Speedometer
Shows how fast your car is moving in km/h or mph
Weather Reports
Wind speed tells us how strong the wind is blowing
Sports
Track running, swimming, and cycling use speed measurements
Internet Speed
Download and upload speeds for internet connections
Aviation
Airplanes use knots to measure their flying speed
Marine Navigation
Ships and boats measure speed in knots on water
Frequently Asked Questions
What is the difference between speed and velocity?
Speed only tells us how fast something moves. Velocity tells us both how fast and in which direction. For example, 60 km/h is speed, but 60 km/h north is velocity.
Why do we use different speed units?
Different activities need different units. Cars use km/h because it's easy to understand for daily driving. Airplanes use knots because it relates to navigation. Scientists use m/s because it works well with other scientific measurements.
How do I convert km/h to m/s quickly?
Divide by 3.6. For example, 36 km/h Ć· 3.6 = 10 m/s. This works because there are 3.6 seconds in an hour when you do the math.
What is a knot and why do ships use it?
A knot is one nautical mile per hour. Ships use it because nautical miles relate to the Earth's shape, making navigation easier on water. One knot equals about 1.85 km/h.
Is this speed converter accurate?
Yes, our converter uses exact conversion factors. For example, 1 m/s = exactly 3.6 km/h. The results are rounded to make them easy to read, but the calculations are precise.
Can I use this converter for very high speeds?
Yes, you can convert any speed value. Whether it's a walking speed of 5 km/h or a rocket speed of 25,000 km/h, the converter works for all values.
Why do some countries use mph and others use km/h?
It depends on the measurement system each country uses. Countries using the metric system (most of the world) use km/h. Countries using the imperial system (like USA and UK) use mph.
What's the fastest speed ever recorded?
The fastest land vehicle reached 1,228 km/h (763 mph). The fastest aircraft reached about 11,000 km/h (6,835 mph). Light travels at 1,080,000,000 km/h - that's over one billion km/h!