Untitled - proficiency equipment limited
Untitled - proficiency equipment limited
Untitled - proficiency equipment limited
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Common Conversion Factors<br />
Quantity Non-SI Unit Metric (SI) Unit<br />
Length inch (in)<br />
millimeter (mm) or<br />
centimeter (cm)<br />
Conversion Factors (Approximate)<br />
Non-SI<br />
To<br />
Metric (SI) Unit<br />
1 in = 25.4 mm 1 cm = 0.39 in<br />
foot (ft) centimeter (cm) or meter (m) 1 ft = 30.5 cm 1 m = 3.28 ft<br />
yard (yd) meter (m) 1 yd = 0.914 m 1 m = 1.09 yd<br />
Metric (SI)<br />
To<br />
Non-SI Units<br />
mile kilometer (km) 1 mile = 1.61 km 1 km = 0.62 mile<br />
Area square inch (in²) square millimeter (mm²) 1 in² = 645 mm² 1 mm² = 0.002 in²<br />
square inch (in²) square centimeter (cm²) 1 in² = 6.45 cm² 1 cm² = 0.155 in²<br />
square foot (ft²)<br />
square centimeter (cm²) or<br />
square meter (m²)<br />
1 ft² = 929 cm² 1 m² = 10.76 ft²<br />
square yard (yd²) square meter (m²) 1 yd² = 0.836 m² 1 m² = 1.20 yd²<br />
acre hectare (ha) 1 acre = 0.405 ha 1 ha = 2.47 acres<br />
square mile square kilometer (km²) 1 square mile = 2.59 km² 1 km² = 0.387 square mile<br />
Volume cubic inch (in ³) cubic centimeter (cm ³) 1 in ³ = 16.4 cm ³ 1 cm ³ = 0.06 in ³<br />
cubic foot (ft ³) cubic decimeter (dm ³) or cubic meter (m ³) 1 ft ³ = 28.3 dm ³ 1 m ³ = 35.3 ft ³<br />
cubic yard (yd ³) cubic meter (m ³) 1 yd ³ = 0.765 m ³ 1 m ³ = 1.31 yd ³<br />
Volume fluid ounce UK (fl. oz UK) milliliter (ml) 1 fl. oz (UK) = 28.4 ml 1 ml = 0.035 fl. oz (UK)<br />
(fluids) pint UK (pt UK) milliliter (ml) or liter (L) 1 pint (UK) = 568 ml 1 L = 1.76 pint (UK)<br />
gallon UK (gal UK) liter (L) or cubic meter (m ³) 1 gal (UK) = 4.55 L 1 m ³ = 220 gal (UK)<br />
fluid ounce US (fl. oz US) milliliter (ml) 1 fl. oz (US) = 29.6 ml 1 ml = 0.034 fl. oz (US)<br />
pint US (pt US) milliliter (ml) or liter (L) 1 pint (US) = 473 ml 1 L = 2.11 pt (US)<br />
gallon US (gal US) liter (L) 1 gal (US) = 3.79 L 1 L = 0.264 gal (US)<br />
Mass ounce (oz) gram (g) 1 oz = 28.3 g 1 g = 0.035 oz<br />
pound (lb) gram (g) or kilogram (kg) 1 lb = 454 g 1 kg = 2.20 lb<br />
ton tonne (t) 1 ton = 1.02 tonne 1 tone = 0.984 ton<br />
tael gram (g) 1 tael = 37.8 g 1 g = 0.026 tael<br />
catty kilogram (kg) 1 catty = 0.605 kg 1 kg = 1.65 catties<br />
picul kilogram (kg) 1 picul = 60.50 kg 1 kg = 0.017 picul<br />
Force pound-force (lbf) newton (N) 1 lbf = 4.45 N 1 N = 0.225 lbf<br />
kilogram force (kgf) newton (N) 1 kgf = 9.81 N 1 N = 0.102 kgf<br />
Pressure pound force per square inch (psi) kilopascal (kPa) 1 psi = 6.89 kPa 1 kPa = 0.145 psi<br />
kilogram force per square centimeter<br />
(kgf/cm²)<br />
kilopascal (kPa) 1 kgf/cm² = 98 kPa 1 kPa = 0.01 kgf/cm²<br />
inch of water (inH₂O) pascal (Pa) 1 inH₂O = 249 Pa 1 Pa = 0.04 inH₂O<br />
bar kilopascal (kPa) 1 bar = 100 kPa 1 kPa = 0.01 bar<br />
Velocity mile per hour (mph) kilometer per hour (km/h) 1 mph = 1.61 km/h 1 km/h = 0.62 mph<br />
Temperature Fahrenheit temp (˚F) Celsius temp (˚C)<br />
Density pound per cubic inch (lb/in ³)<br />
gram per cubic centimeter (g/cm ³) = tonne<br />
per cubic meter (t/m ³)<br />
5 (˚F-32)<br />
˚C = ————-<br />
9<br />
9 x ˚C<br />
˚F = —-——- + 32<br />
5<br />
1 lb/in ³) = 27.7 t/m ³ 1 t/m ³ = 0.036 lb/in ³<br />
pound per cubic foot (lb/ft ³) kilogram per cubic meter (kg/m ³) 1 lb/ft ³ = 16.02 kg/m ³ 1 kg/m ³ = 0.06 lb/ft ³<br />
ton per cubic yard (ton/yd ³) tone per cubic meter (t/m ³) 1 ton/yd ³ = 1.33 t/m ³ 1 t/m ³ = 0.752 ton/yd ³<br />
Energy British thermal unit (Bru) kilojoule (kJ) 1 Btu = 1.06 kJ 1 kJ = 0.948 Btu<br />
therm megajoule (MJ) 1 therm = 106 MJ 1 MJ = 9.48 x 10ֿ³ therm<br />
calorie (dietician) kilojoule (kJ) 1 Cal (dietician) = 4 kJ 1 kJ = 0.23 Cal (dietician)<br />
Power horsepower (hp) kilowatt (kW) 1 hp = 0.746 kW 1 kW = 1.34 hp<br />
Fuel consumption<br />
miles per gallon (mpg) liters per 100 kilometers (L/100 km)<br />
先進機械工程有限公司<br />
PROFICIENCY EQUIPMENT LTD.<br />
(泰昇集團成員 A member of Tysan Group)<br />
282<br />
(n) x mpg = —— L/100 km<br />
(n)<br />
282<br />
(n) x L/100 km = —— mpg<br />
(n)<br />
香港灣仔港灣道 25 號海港中心 11 樓<br />
11/F Harbour Centre, 25 Harbour Road, Wanchai, Hong Kong<br />
電話 Tel: 2576 1868 傳真 Fax: 2577 8612<br />
電子郵件 Email: pel@netvigator.com<br />
網址 Website: www.<strong>proficiency</strong>.com.hk