Unit conversion tools
Instant conversions for length, weight, temperature, volume, speed, area, data, and time. Each page has a live converter, the exact formula, and a handy conversion table.
Length
Centimeters to Inches
1 cm = 0.393701 in
Inches to Centimeters
1 in = 2.54 cm
Feet to Meters
1 ft = 0.3048 m
Meters to Feet
1 m = 3.28084 ft
Millimeters to Inches
1 mm = 0.0393701 in
Inches to Millimeters
1 in = 25.4 mm
Kilometers to Miles
1 km = 0.621371 mi
Miles to Kilometers
1 mi = 1.60934 km
Feet to Centimeters
1 ft = 30.48 cm
Centimeters to Feet
1 cm = 0.0328084 ft
Meters to Yards
1 m = 1.09361 yd
Yards to Meters
1 yd = 0.9144 m
Inches to Feet
1 in = 0.0833333 ft
Feet to Inches
1 ft = 12 in
Centimeters to Millimeters
1 cm = 10 mm
Millimeters to Centimeters
1 mm = 0.1 cm
Meters to Centimeters
1 m = 100 cm
Centimeters to Meters
1 cm = 0.01 m
Miles to Feet
1 mi = 5280 ft
Weight & Mass
Kilograms to Pounds
1 kg = 2.20462 lb
Pounds to Kilograms
1 lb = 0.453592 kg
Grams to Ounces
1 g = 0.035274 oz
Ounces to Grams
1 oz = 28.3495 g
Kilograms to Grams
1 kg = 1000 g
Grams to Kilograms
1 g = 0.001 kg
Pounds to Ounces
1 lb = 16 oz
Ounces to Pounds
1 oz = 0.0624999 lb
Stone to Pounds
1 st = 14 lb
Pounds to Stone
1 lb = 0.0714286 st
Kilograms to Stone
1 kg = 0.157473 st
Stone to Kilograms
1 st = 6.35029 kg
Grams to Pounds
1 g = 0.00220462 lb
Pounds to Grams
1 lb = 453.592 g
Temperature
Volume
Liters to US Gallons
1 L = 0.264172 gal
US Gallons to Liters
1 gal = 3.78541 L
Milliliters to US Fluid Ounces
1 mL = 0.033814 fl oz
US Fluid Ounces to Milliliters
1 fl oz = 29.5735 mL
US Cups to Milliliters
1 cup = 236.588 mL
Milliliters to US Cups
1 mL = 0.00422675 cup
Tablespoons to Milliliters
1 tbsp = 14.7868 mL
Milliliters to Tablespoons
1 mL = 0.067628 tbsp
Liters to Milliliters
1 L = 1000 mL
Milliliters to Liters
1 mL = 0.001 L
US Quarts to Liters
1 qt = 0.946353 L
Liters to US Quarts
1 L = 1.05669 qt
US Cups to Liters
1 cup = 0.236588 L
Liters to US Cups
1 L = 4.22675 cup
Speed
Miles per Hour to Kilometers per Hour
1 mph = 1.60934 km/h
Kilometers per Hour to Miles per Hour
1 km/h = 0.621372 mph
Knots to Miles per Hour
1 kn = 1.15078 mph
Miles per Hour to Knots
1 mph = 0.868977 kn
Meters per Second to Kilometers per Hour
1 m/s = 3.6 km/h
Kilometers per Hour to Meters per Second
1 km/h = 0.277778 m/s
Area
Data Storage
Time
Seconds to Minutes
1 s = 0.0166667 min
Minutes to Seconds
1 min = 60 s
Minutes to Hours
1 min = 0.0166667 hr
Hours to Minutes
1 hr = 60 min
Hours to Days
1 hr = 0.0416667 d
Days to Hours
1 d = 24 hr
Seconds to Hours
1 s = 0.000277778 hr
Hours to Seconds
1 hr = 3600 s
Days to Weeks
1 d = 0.142857 wk
Weeks to Days
1 wk = 7 d
Minutes to Days
1 min = 0.000694444 d
Days to Minutes
1 d = 1440 min
Milliseconds to Seconds
1 ms = 0.001 s
Seconds to Milliseconds
1 s = 1000 ms
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