Weights & Measures : Metric Conversion Factors

LENGTH

Inches in 1 = 25.4 mm (millimeters) 1 = 2.54 cm (centimeters)
feet ft 1 = 30 cm (centimeters) 1 = 0.3048 m (meters)
yard yd 1 = 0.9144 m (meters)
miles mi 1 = 1.6093 km (kilometers)

AREA

square inches in2 1 = 6.5 cm2 (square centimeters)
square feet ft2 1 = 0.0929 m2 (square meters)
square yards yd2 1 = 0.8361 m2 (square meters)
square miles mi2 1 = 2.5900 km2 (square kilometers)
acres - 1 = 0.4047 ha (hectares)

WEIGHT

ounces oz 1 = 28.3495 g (grams)
pounds (avdp) lb 1 = 0.4536 kg (kilograms)
short tons (2000 lb) - 1 = 0.9072 t (tonnes)

VOLUME

teaspoons tsp 1 = 5 ml (milliliters)
tablespoons Tbsp 1 = 15 ml (milliliters)
fluid ounces fl oz 1 = 30 ml (milliliters)
cups c 1 = 0.2366 l (liters)
pints pt 1 = 0.4732 l (liters)
quarts (liquid) qt 1 = 0.9463 l (liters)
gallons gal 1 = 3.7852 l (liters)
cubic feet ft3 1 = 0.0283 m3 (cubic meters)
cubic yards yd3 1 = 0.7646 m3 (cubic meters)

TEMPERATURE

Fahrenheit temperature °F 1 = 5/9 (after subtracting 32) °C Celsius temperature