Metric conversions

Metric Conversions

Metric conversions

Please find below a list of measurements in distance, volume, mass, length, weight, force etc that may come in handy from time to time. Here at Mermaids Dive Centre Pattaya, Thailand we wish for you to have as much knowledge of all that can come in useful.

Length Conversion Factors 

To convert from  to Multiply by
Mile (US Statute) kilometer (km) 1.609347
Mile (US Statute) kilometer (km) 1.609347
Inch (in) millimeter (mm) 25.4
Inch (in) centimeter (cm) 2.54
Inch (in) meter (m) 0.0254
Foot (ft) meter (m) 0.3048
Yard (yd) meter (m) 0.9144

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Volume Conversion Factors 

To convert from  to Multiply by
Cubic inch (cu in) cubic meter (cu m) 0.00001639
Cubic foot (cu ft) cubic meter (cu m) 0.02831685
Cubic yard (cu yd) cubic meter (cu m) 0.7645549
Gallon (gal) cubic meter (cu m) 0.004546
Canada liquid
Gallon (gal) liter 3.7854118
U.S. liquid
Gallon (gal) cubic meter (cu m) 0.00378541
Fluid ounce (fl oz) milliliters (ml) 29.57353
Fluid ounce (fl oz) cubic meter (cu m) 0.00002957

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Force Conversion Factors 

To convert from  to Multiply by
Kip (1000 lb) kilogram (kg) 453.6
Kip (1000 lb) Newton (N) 4,448.222
Pound (lb) kilogram (kg) 0.4535924
Avoirdupois Pound (lb) Newton (N) 4.448222

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STANDARD ITEM TABLE

METRIC EQUIVALENT

ACRE Hectare (ha)
CUBIC FOOT Cubic meter (m3)
CUBIC YARD Cubic meter (m3)
GALLON/ M GALLON Liter (L), cubic meter (m3)
HUNDRED Hundred for traffic buttons
HUNDRED WEIGHT Kilograms (kg)
LINEAR FOOT Meter (m)
M BOARD FEET Cubic meter (m3)
MILE Kilometer (km)
NAUTICAL MILE Nautical Mile
POUND Kilogram (kg) for mass
Newton (N) for force
SQUARE FOOT Square meter (m2)
SQUARE YARD Square meter (m2)
TON Tonne (t)

UNITS OF MEASUREMENT USED IN SPECIAL PROVISIONS & GENERAL SPECIAL PROVISIONS

METRIC EQUIVALENT

GAGE; GAUGE METAL THICKNESS gage (mm)
FAHRENHEIT TEMPERATURE Kelvin (K) or degree Celsius (C)
FATHOM  WATER DEPTH Meter (m)
FOOT/LBS TORQUE Newton-meter (N-m)
LBS/SQ. IN PRESSURES kilopascal (kPa)
Mega Pascal (MPa) (if very large number)
LBS/SQ. FT Kilopascal (kPa)
LBS/SQ YD Kilopascal (kPa)
INCH LINEAR Millimeter (mm)
KIPS;KSI TENSION Kilopascal (kPa) or
Mega Pascal (MPa)
LBS/ACRE EROSION CONTROL Kilograms/hectare
LBS/CU. FT. DENSITY Kilogram per cubic meter (kg/m3)
MIL THICKNESS Micrometer (um)
FT. LBS./SEC. HORSE POWER Watt (W)

Units of Measurement used in Commercial Standards

METRIC EQUIVALENT

 GALS/HR or MIN (PUMPS)  Liters per second (L/s)
 500 GALLON TANKS  Cubic meter (m3) but it could also possibly be in liter (L)
 55 GALLON DRUMS for liquid  Cubic meter (m3) or liter (L)
94 LBS/SACK (CEMENT)  Kilograms (kg)
DIAMETER OF REINFORCING STEEL  Millimeter (mm)
LBS/FT OF REINFORCING STEEL  Kilogram per meter (kg/m)
BUSHEL  Cubic meter (m3)

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Length Conversion Factors 

Length

To convert from  to Multiply by
Mile (US Statute) kilometer (km) 1.609347
Inch (in) millimeter (mm) 25.4
Inch (in) centimeter (cm) 2.54
Inch (in) meter (m) 0.0254
Foot (ft) meter (m) 0.3048
Yard (yd) meter (m) 0.9144

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Volume Conversion Factors 

Volume

To convert from  to Multiply by
Cubic inch (cu in) cubic meter (cu m) 0.00001639
Cubic foot (cu ft) cubic meter (cu m) 0.02831685
Cubic yard (cu yd) cubic meter (cu m) 0.7645549
Gallon (gal) liter 4.546
Canada liquid
Gallon (gal) cubic meter (cu m) 0.004546
Gallon (gal) liter 3.7854118
U.S. liquid
Gallon (gal) cubic meter (cu m) 0.00378541
Fluid ounce (fl oz) milliliters (ml) 29.57353
Fluid ounce (fl oz) cubic meter (cu m) 0.00002957

Force Conversion Factors 

Force

To convert from to multiply by
Kip (1000 lb) kilogram (kg) 453.6
Kip (1000 lb) Newton (N) 4,448.222
Pound (lb) kilogram (kg) 0.4535924
Avoirdupois Pound (lb) Newton (N) 4.448222

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Pressure or Stress Conversion Factors 

Pressure or Stress

Kip per square inch (ksi) Mega Pascal (MPa) 6.894757
Pound per kilogram per 4.8824
Pound per square Pascal (Pa) 47.88
Foot (psf)
Pound per square Pascal (Pa) 6,894.757
Inch (PSI)
Pound per square Mega Pascal (MPa) 0.00689476

Mass Conversion Factors

Mass (weight)

Pound (lb) Kilogram (kg) 0.4535924
Avoirdupois
Ton, 2000 lb Kilogram (kg) 907.1848

Mass per volume (density)

Pound per cubic Kilogram per cubic 16.01846

Temperature

Degree Fahrenheit (F) Degree Celsius (C) tc = (tF-32)/1.8
Degree Fahrenheit (F) Kelvin (K) tk = (tF+459.7)/1.8
Kelvin (K) Degree Celsius (C) tc = tk-273.15

Energy and heat

British thermal Joule (J) 1055.056
Unit (Btu)
Calorie (cal) Joule (J) 4.1868E
Btu/degree F x hr x ft2  W/m2 – degree K 5.678263
Kilowatt-hour (kwh) Joule (J) 3,600,000E
British thermal Calories per gram 0.55556

Power Conversion Factors

Power

horsepower (hp) Watt (W) 745.6999  E

Velocity

mile per hour (mph) Kilometer per hour (km/hr) 1.60934
mile per hour (mph) Meter per second (m/s) 0.44704

More Useful Conversion Factors

Quantity

from English to Metric Multiply by

Length

Mile km 1.609347
Yard m 0.9144
Foot m 0.3048
Inch mm 25.40

Area

square mile km 2 2.590
Acre m 2 4047
Acre hectare 0.4047
Square yard m 2 0.8361
Square foot m 2 0.092 90
Square inch mm 2 645.2

Volume

Cubic yard m 3 0.7646
Cubic foot m 3 0.028 32
Cubic foot L (1000 cm 3) 28.32
100 board feet m 3 0.2360
Gallon L (1000 cm 3) 3.785

Mass

lb kg 0.4536
kip (1000 lb) metric ton (1000kg) 0.4536

Mass/unit length

plf kg/m 1.488

Mass/unit area

psf kg/m 2 4.882

Mass density

pcf kg/m 3 16.02

Force

lb N 4.448
kip kN 4.448

Force/unit length

plf N/m 14.59
klf kN/m 14.59

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