Conversion Tables

Conversion Table

Additional info

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Measuring pump performance factors can be muddled with varying units of measurement, so it is important that you have a guide for quickly and easily converting different units of measurement.

Below you will find a number of different pump conversion tables, including a flow rate conversion table, force conversion table and water conversion table. We hope these tables will be useful to you, and if you have any concerns or questions regarding conversions, please give us a call on 1800 733 687.

Please click on the type of conversion you require below (eg. Area, Volume, etc). The associated conversion table will then be displayed.

These conversion equivalents are based generally on A.S. 1376 – 1974. In some cases the degree of rounding has been adjusted.

Length
Area
Volume
Liquid Measure
Velocity
Mass
Mass Flow Rate
Volumetric Rate of Flow
Pressure & Liquid Head
Power
Force
Energy, Work and Heat
Rules

Length

Millimeter (mm)	Centimeter (cm)	Meter (m)	Inch (in)	Foot (ft)	Yard (yd)
1	0.1	0	0.04	0	0
10	1	0.01	0.39	0.03	0.01
1000	100	1	39.37	3.28	1.09
25.4	2.54	0.03	1	0.08	0.03
304.8	30.48	0.3	12	1	0.33
914.4	91.44	0.91	36	3	1

Area

Square mm	Square cm	Square meter	Square inch	Square foot	Square yard
1	0.01	39609	1.55 * 10^-3	1.076 * 10^-5	1.196 * 10^-6
100	1	39548	0.16	1.076 * 10^-3	1.196 * 10^-4
106	10 000	1	1550	10.76	1.2
645.16	6.45	6.452 * 10^-4	1	6.944 * 10^-3	7.716 * 10^-4
92 903	929.03	0.09	144	1	0.11
836 127	8361.27	0.84	1296	9	1

Volume

Cubic mm	Cubic cm	Cubic meter	Cubic inch	Cubic foot	Cubic yard
1	0	109	6.1 * 10^-5	3.531 * 10^-8	1.308 * 10^-9
1000	1	39609	0.06	3.531 * 10^-5	1.308 * 10^-6
109	39609	1	61 024	35.31	1.31
16 387	16.39	1.639 * 10^-5	1	5.787 * 10^-4	2.146 * 10^-5
2.832 * 107	2.732 * 104	0.03	1728	1	0.04
7.646 * 108	7.646 * 105	0.76	0.76	27	1

Liquid Measure

Cubic meter	Litre	Millilitre	Imp gallon	U.S gallon	Cubic foot
1	1000	106	220	264.2	35.31
0	1	1000	0.22	0.26	0.04
39609	0	1	2.2 * 10^-4	2.642 * 10^-4	3.53 * 10^-5
0	4.55	4546	1	1.2	0.16
0	3.79	3785	0.83	1	0.13
0.03	37.31	28 317	6.23	7.48	1

Velocity

m per sec	foot per sec	m per min	foot per min	km per hr	mile per hr
1	3.28	60	196.85	3.6	2.24
0.31	1	18.29	60	1.1	0.68
0.02	0.06	1	3.28	0.06	0.04
0.01	0.02	0.31	1	0.02	0.01
0.28	0.91	16.67	54.68	1	0.62
0.45	1.47	26.82	88	1.61	1

Mass

Kilogram	Pound	Hundredweight	Tonne	Ton	U.S. ton
1	2.21	0.02	0	9.84 * 10^-4	0
0.45	1	0.01	4.54 * 10^-4	4.46 * 10^-4	5.0 * 10^-4
50.8	112	1	0.05	0.05	0.06
1000	2204.6	19.68	1	0.98	1.1
1016	2240	20	1.02	1	1.1
907.2	2000	17.86	0.91	0.98	1

Mass Flow Rate

kg per sec	pound per sec	kg per hr	pound per hr	ton per hr	tonne per hr
1	2.21	3600	7936.64	3.54	3.6
0.45	1	1633	3600	1.61	1.63
2.78 * 10^-4	6.12 * 10^-4	1	2.21	9.84 * 10^-4	0
1.26 * 10^-4	2.78 * 10^-4	0.45	1	4.46 * 10^-4	4.54 * 10^-4
0.28	0.62	1016	2240	1	1.02
0.28	0.61	1000	2240.6	0.98	1

Volumetric Rate of Flow

Litre per sec	Litre per min	Cubic m per hr	Cubic foot per hr	Cubic foot per min	Imp gallon per min	U.S.galon per min	U.S barrel per day
1	60	3.6	127.13	2.12	13.2	15.85	543.44
0.02	1	0.01	2.12	0.04	0.22	0.26	90.57
0.28	16.67	1	35.31	0.59	3.67	4.4	150.96
0.01	0.47	0.03	1	0.02	0.1	0.13	4.28
0.47	28.32	1.7	60	1	6.23	7.48	256.48
0.08	4.55	0.27	9.63	0.16	1	1.2	41.18
0.06	3.79	0.23	8.02	0.13	0.83	1	34.29
0	0.11	0.01	0.23	0	0.02	0.03	1

Pressure & Liquid Head

	newton per m²	kilopascal	bar	kg force per cm²	pound force per inch²	foot of water	meter of water	milimeter of water	inch of mercury
newton per m²	1	0	105	1.02 * 105	1.45 * 10^-4	3.35 * 10^-4	1.02 * 10^-4	0.01	2.95 * 10^-4
kilopascal	1000	1	0.01	1.02 * 10^-2	0.15	0.34	0.1	7.5	0.3
bar	100000	100	1	1.02	14.5	33.52	10.2	750.1	29.53
kg force per cm²	98067	98.07	0.98	1	14.22	32.81	10	735.6	28.96
pound force per inch²	9895	6.9	0.07	0.07	1	2.31	0.7	51.72	2.04
foot of water	2984	2.98	0.03	0.03	0.43	1	0.31	22.42	0.88
meter of water	9789	9.79	0.1	0.1	1.42	3.28	1	73.42	2.89
mm of mercury	133.3	0.13	0	0	0.02	0.05	0.01	1	0.04
inch of mercury	3386	3.39	0.03	0.03	0.49	1.13	0.35	25.4	1

Power

Watt	kg force m per sec	Metric horsepower	Foot pound force per sec	Horsepower
1	0.1	0	0.74	0
9.81	1	0.01	7.23	0.01
735.5	75	1	542.48	0.99
1.36	0.14	1.84 * 10^-3	1	1.82 * 10^-3
745.7	76.04	1.01	550	1

Force

Newton	Kilonewton	Kilogram force (kilopond)	Pound force
1	0	0.1	0.23
1000	1	101.97	224.81
9.81	0.01	1	2.21
4.45	0	0.45	1

Energy, Work and Heat

Joule	Kilojoule	Megajoule	Foot pound force	British thermal unit	Therm	Kilowatt hour
1	0	39609	0.74	9.48 * 10^-4	9.48 *10^-9	2.78 * 10^-7
1000	1	0	737.56	0.95	9.48 * 10^-6	2.78 * 10^-4
106	1000	1	737 562	947.82	9.48 * 10^-3	0.28
1.36	1.36 * 10^-3	1.36 * 10^-6	1	1.28 * 10^-3	1.28 * 10^-8	3.7 * 10^-7
1055.1	1.06	1.05 * 10^-3	778.17	1	39578	2.931 * 10^-4
1.055 * 108	105 510	105.51	7.78 * 107	100 000	1	29.31
3.6 * 106	3600	3.6	2.65 * 106	3412.1	0.03	1

Rules

1 kilometer	1000 meters = 0.62137 miles
1 mile	1609.34 meters = 1.60934 kilometers
1 acre	4046.86 m squared = 0.404686 hectare
1 hectare	1.000 *10 000 m squared = 2.471 acre
1 U.S. Barrel	42 U.S. gallons (petroleum measure) = 34.97 Imp. Gallons = 0.159 m³
1 litre	10 000 000 mm cubed = 10 000 cm³ or 1 cubic decimeter
1 litre	1.76 U.K pints = 2.133 U.S. pints.
1 Pascal	1 newton per square meter
1 millimeter	Hg is also called “torr”
1 joule	1 newton meter
1 watt	1 joule per sec = 1 newton meter per sec
Density	1 gram per cm³ = 1000 kg per m³ = 0.0361 pounds per inch³
Density	1 kg per m³ = 0.001 grams per m³ = 0.0624 pounds per foot³
Specific Volume	1 cm³ per gram = 0.001 m³ per kg = 27.68 inch³ per pound
Specific Volume	1 m³ per kg = 1000 cm³ per gram = 16.0185 foot³ per pound.
International standard atmosphere	(1atm) = 101 325 pascals or 1.013 25 bar. This equals 1.033 23 kilogram force per cm² or 14.6959 pound force per inch³
International standard atmosphere	In meteorology 1 millibar = 100 pascal