Industry Directory 2016 | Page 188

188

AIRAH

Metric conversion

METRIC CONVERSION
Length

1 inch
1 mile

= 25.4 mm
= 1.609 km

1m
1 km

Mass

1 grain
1 ounce
1 Troy ounce
1 pound
1 ton

= 0.0648 gram
= 28.35 gram
= 31.1 gram
= 0.454 kg
= 1.016 tonne

1 gram
1 gram

Area

1 in²
1 ft²
1 acre

= 645 mm²
= 0.0929 m²
= 0.405 ha

1 mm²
1 m²
1 ha

= 0.00155 in²
= 10.76 ft²
= 2.47 acre

Volume
(solids)

1 in³

= 16387 mm³

1 m³
1 m³

= 35.3 ft³
= 1.31 yards³

Volume
(liquids
and gases)

1 fluid ounce
1 pint
1 imperial gal.
1 U S gallon
1 imperial gal.

= 28.4 mL
= 0.568 Litre
= 4.55 Litre
= 3.785 Litre
= 1.20 US gal.

1 mL
1 Litre
1 Litre
1 Litre
1 Litre

= 0.0352 fluid ounce
= 61.02 in³
= 1.76 pints
= 0.220 imperial gal.
= 0.264 U S gal.

Viscosity

1 lbf.s/ft²

= 47.88026 N.s/m²

1 N.s/m²

= 0.020885 lbf.s/ft²

Velocity

1 ft/sec
1 ft/min
1 mile/hr

= 0.3048 m/s
= 0.00508 m/s
= 1.61 km/hr

1 m/s
1 m/s
1 km/hr

= 3.28 ft/s
= 196.8 fpm
= 0.621 mph

Pressure

1 psi
1 in H2O
1 mm H2O
1 metre H2O
1 in Hg
1 mm Hg
1 mm Hg
1 bar
1 Std. Atmos.
1 Std. Atmos.

= 6.89 kPa
= 249 Pa
= 9.81 Pa
= 9.81 kPa
= 3.39 kPa
= 1 Torr
= 133.3 Pa
= 100 kPa
= 101.3 kPa
= 760 mm Hg Abs.

1 kPa
1 kPa
1 kPa
1 kPa
1 kPa
1 kPa
1 kPa
1 kPa

= 0.145 psi
= 20.9 lb/ft²
= 4.014 in Hg
= 0.335 ft H2O
= 102 mmH2O
= 0.295 in Hg
= 7.502 mm Hg
= 0.01 bar

Power and
Heat Flow Rate

1 HP
1 Boiler HP
1 Btu/hour
1 k cal/hour
1 ton refrig.
1 MJ/hour

= 746 Watt
= 9.81 kW
= 0.293 Watt
= 1.163 Watt
= 3.517 kW
= 278 Watt

1 kW
1 kW
1 Watt
1 kW
1 kW

= 1.34 HP
= 3415 BTU/hr
= 0.860 k cal/hr
= 0.284 ton refrig.
= 3.6 MJ/hr

Conductivity
(k)

1 BTU in/hr.ft².°F

= 0.144 W/m K

1 W/m K

= 6.93 BTU in /hr ft² °F

Conductance
(c)

1 BTU/hr.ft².°F

= 5.68 W/m² K

1 W/m² K

= 0.176 BTU/hr ft² °F

1 kg
1 tonne

= 39.37 inch
= 0.6215 mile
= 15.4 grains
= 0.03527 ounces
= 2.20 pounds
= 0.984 ton