Conversion Tables

Imperial/American to Metric (Fahrenheit to Celsius/centigrade) conversions for length and area, air, body and oven temperatures, and shoe and clothing conversion tables...

Length, Area, Weight, Volume Conversion

Imperial/US to Metric: Length
1 inch
2.54 centimetres (cm)
1 foot (ft) 12 inches (in) 0.3048 metre (m)
1 yard (yd) 3 ft 0.9144 m
1 mile 1,760 yd 1.60934 kilometres (km)
1 int nautical mile 2025.4 yd 1852 m
Metric to Imperial/US: Length
1 centimetre (cm) 10 millimetres (mm) 0.3937 in
1 m 100 cm 1.0936 yd / 3.38 ft / 39.37 in
1 kilometre (km) 1000 m 0.62137 mile / 5/8ths of a mile
Imperial/US to Metric: Area
1 in2
645.16 mm2
1 yd2 9 ft2 0.8361 m2
1 acre 4,840 yd2 4046.86 m2 / 0.405 hectare
1 mile2 640 acres 2.590  km2
Metric to Imperial/US: Area
1 cm2 100 mm2 0.1550  in2
1 metre2 square 10,000 cm2 1.1960 yd2
1 hectare (ha) 10,000 m2 2.471 acres
1 km2 100 ha 0.3861 mile2
Imperial/US to Metric: Weight Metric to Imperial: Weight
1 ounce 28.35 gram 1 gram 0.035 ounce
1 pound 453.59 gram 1 kilogram 2.2 pounds
Imperial/US to Metric: Volume Metric to Imperial: Volume
1 US pint 0.473 litres 1 litre 33.2 US / 35.2 Imperial fl ounces
1 Imperial pint 0.568 litres 1 litre 2.11 US / 1.76 Imperial pints
1 cup 0.237 litres 1 litre 4.228 cups

Temperature and Energy Conversion

Temperature
Convert Fahrenheit to Celsius (degrees F - 32) x 0.555 degrees C
Convert Celsius to Fahrenheit (degrees C x 1.8) + 32 degrees F
Water Boils at 212° F 100° C
Normal body temperature 98.6° F 37° C
Water Freezes at 32° F 0° C
Room temperature 68° F 20° C
Air Temperatures: degrees Celsius (C) to degrees Fahrenheit (F)
0° C = 32° F 5° C = 41° F 10° C = 50° F 15° C = 59° F
20° C = 68° F 25° C = 77° F 30° C = 86° F 35° C = 95° F
Oven Temperatures
Gas Mark Celsius (C) Fahrenheit (F) Description
1/2 130 ° C 250 ° F Very Slow
1 140 ° C 275 ° F Very Slow
2 150 ° C 300 ° F Slow
3 170 ° C 325 ° F Slow
4 177 ° C 350 ° F Moderate
5 190 ° C 375 ° F Moderate
6 200 ° C 400 ° F Moderately Hot
7 220 ° C 425 ° F Hot
8 230 ° C 450 ° F Hot
9 245 ° C 475 ° F Hot
10 260 ° C 500 ° F Extremely Hot
Simple conversion formula: to convert Celsius to Fahrenheit minus 2, times 2, plus 32.
  • Example 16C: 16-2=14 x2=28 +32=60F
  • Online temperature conversion from CalculateMe: Click here
Energy Units
KWh (Kilowatt-hours) BTU ( British Thermal Unit)
1,000 kWh 3.41 million BTU
0.000293071 kWh 1 BTU
Several online converters help with complex energy conversions:

Clothing and Shoe Conversion

Women's suits and dresses
USA/American UK/British European Japanese
0-2 4 32 5
4-6 6-8 34-36 7-9
8-10 10-12 38-40 11-13
12 14 42 15
14 16 44 17
16 18 46
Women's Shoes
5 2.5 35 21
6 3.5 36-37 22
7 4.5 37.5 23
8 5.5 38 24
9 6.5 40 25
Bras
Men's Suits & Overcoats
USA/American UK/British Euro Japanese
36 36 46 S/M
38 38 48 M
40 40 50 L
42 42 52 L/LL
44 44 54 LL
Men's Trousers
28 28 71
30 30 76
32 32 81
34 34 87
36 36 92
38 38 97
40 40 102
42 42 107
44 44 112
Men's Shoes
8 7.5 41 26
8.5 8 42 26.5
9.5 9 43 27.5
10 9.5 44 28.5

 

Children's Clothes
USA/Canada UK/British (height in inches) Euro (height in cm)
4 43 109
6 48 122
8 55 140
10 58 147
12 60 147
14 62 157
  • For conversions of infant and child clothes and shoes from US to European standard sizes see website Size Guide.net: Children's sizes
  • Euro children's shoe sizes are measure in centimetres; 1cm =1 size