Conversion factors to SI unit of some practical units

To convert from

to

Multiply by A10x

 

 

A

x

 

 

 

 

acre foot

meter3

1.233

3

acre

meter2

4.046 873

3

barrel

meter3

1.589 873

-1

British thermal unit (mean)

Joule

1.055 87

3

centimeter of mercury

Pascal

1.333 22

3

centimeter of water 4oC

Pascal

9.806 38

1

centipoise

pascal second

1

-3

centistoke

meter2 per second

1

-6

day

Second

8.640

4

day(sidereal)

Second

8.616 409

4

degree Rankine

kelvin K

TR/1.8

 

fathom

Meter

1.828 8

0

fermi

Metet

1

-15

foot

Meter

3.048 006

-1

gallon(UK liquid)

meter3

4.546 090

-3

gallon (US liquid)

meter3

3.785 412

-3

hectare

meter2

1

4

horsepower (550 ft.lbs/s)

Watt

7.456 999

2

inch

Meter

2.54

-2

inch of mercury (32oF)

Pascal

3.386 38

3

knot (international)

meter per second

5.144 444

-1

lambart

candela per meter2

1/ p

4

langley

joule per meter2

4.184

4

liter

meter3

1

-3

micron

Meter

1

-6

mile (international)

Meter

1.609 344

3

mile (US statute)

Meter

1.609 3

3

mile (nautical)

Meter

1.852

3

oersted

ampere per meter

7.957 747

1

phot

lumen per meter2

1

4

pint (US liquid)

meter3

4.731 765

-4

poise (absolute viscosity)

pascal second

1

-1

pound

Kilogram

4.535 924

-1

poundal

Newton

1.382 550

-1

quart (US dry)

meter3

1.101 221

-3

quart (US liquid)

meter3

9.463 529

-4

rad (absorbed dose)

Gray

1

-2

rem (dose euivalent)

Sievert

1

-2

slug

Kilogram

1.459 390

1

statampere

Ampere

3.335 641

-10

statcoulomb

Coulomb

3.335 641

-10

statfarad

Farad

1.112 650

-12

statmho

Siemens

1.112 650

-12

statohm

Ohm

8.987 552

11

statvolt

Volt

2.997 925

2

stokes

merter2 per second (M2/s)

1

-4

tablespoon

Milliliter

1.479

1

teaspoon

Milliliter

4.929

0

ton (explosive energy )

Joule

4.184

9

ton of refrigeration (12 000 Btu/h)

Watt

3.517

3

year (365 days)

Second

3.153 6

7

year (sidereal)

Second

3.155 815

7

year (tropical)

Second

3.155 693

7

About the author of this page: Dr. Atish Mozumder is college professor in Physics and freelance writer. His primary focus is to make science more interesting for the learners. He holds a Ph.D. in High Energy Physics from the University of Delhi. His other interests are Java programming and trekking in the Himalayas.>find more details

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