Home
News
Reference
Constants
Fundamental Physical Constants
Air Composition
Astro-physical Constants
Coefficients of Friction
Indices Of Refraction
Nuclear & Particle Data
Special Math Constants
Calculators & Apps
Unit Conversion
Periodic Table of Elements
Time Reference & Exact Time
Humidex & Windchill Calculator
Other
Decimal Multiples & Prefixes
Physics Glossary
Greek Alphabet
Materials Safety Info
Nobel Prize & Bruce Medal Info
Ask Experts
Answers
Classical Mechanics
Thermodynamics
Electricity & Magnetism
Waves in Matter, Sound
Light, Optics and Photonics
Atomic & Nuclear
Quantum Mechanics
Special & General Relativity
Astronomy & Astrophysics
Definitions & Reference
All Answers, all categories
Questions
Unanswered Questions
Directories
University and College Departments
Institutes and National Labs
Professional Societies
Student Societies
Journals
Publishers
Companies
Education
Grad Advisor
Essays
Astronomy
History of Physics
Reference for Educators
Youth Science
New Theories
Fun
Cartoons
Cartoons by Rick London
Cartoons by Mark Parisi
Cartoons by John McPherson
Cartoons by Jerry Van Amerongen
Solvay ala PhysLink.com
Jokes, etc.
Jokes, jokes and more jokes
Physics Party
Chemist's equiVALENT Party
Physics Major?
Is there Santa?
'Twas The Night Before Christmas, NASA-style
The Fate of the Universe
The Ten Commandments for Amateur Astronomers
Science Shop
Unit Conversion Calculator
Length
1 in
=
2.54 cm
=
0.0254 m
1 ft
=
30.48 cm
=
0.3048 m
1 yard
=
91.44 cm
=
0.9144 m
1 mile
=
1.6093 Km
=
1609.3 m
Use engineering units. For example: 5.23e-7
From:
kilometers
meters
centimeters
milimeters
microns
angstroms
miles
yards
feet
inches
astronomical units
light years
To:
kilometers
meters
centimeters
milimeters
microns
angstroms
miles
yards
feet
inches
astronomical units
light years
Area
1 in
2
=
6.4516 cm
2
1 ft
2
=
0.0929 m
2
1 acre
=
0.4047 hectares
=
4047 m
2
Use engineering units. For example: 5.23e-7
From:
sq kilometers
sq meters
sq centimeters
sq millimeters
acres
hectares
sq miles
sq yards
sq feet
sq inches
To:
sq kilometers
sq meters
sq centimeters
sq millimeters
acres
hectares
sq miles
sq yards
sq feet
sq inches
Volume
1 in
3
=
16.387 cm
3
1 ft
3
=
0.0283 m
3
1 us f.oz
=
29.574 ml
1 imp f.oz
=
28.41 ml
1 us gal
=
3.7854 l
1 imp gal
=
4.546 l
Use engineering units. For example: 5.23e-7
From:
cu meters
liters
cu centimeters
cu yards
cu feet
cu inches
barrels (Brit)
barrels (US oil)
bushels (Brit)
bushels (US)
gallons (Brit)
gallons (US, dry)
gallons (US, liq)
ounces (Brit, flu)
ounces (US, flu)
pints (Brit)
pints (US, dry)
pints (US, liq)
quarts (Brit)
quarts (US, dry)
quarts (US, liq)
cups
tablespoons
teaspoons
To:
cu meters
liters
cu centimeters
cu yards
cu feet
cu inches
barrels (Brit)
barrels (US oil)
bushels (Brit)
bushels (US)
gallons (Brit)
gallons (US, dry)
gallons (US, liq)
ounces (Brit, flu)
ounces (US, flu)
pints (Brit)
pints (US, dry)
pints (US, liq)
quarts (Brit)
quarts (US, dry)
quarts (US, liq)
cups
tablespoons
teaspoons
Weight
1 OZ
=
28.35 g
1 lb
=
0.4536 kg
=
453.6 g
1 imp ton
=
1016 kg
Use engineering units. For example: 5.23e-7
From:
tons (metric)
kilograms
grams
milligrams
pounds
ounces
To:
tons (metric)
kilograms
grams
milligrams
pounds
ounces
Temperature
o
F
=
o
C*1.8 + 32
o
C
=
(
o
F - 32) / 1.8
o
R
=
o
F + 459.67
K
=
o
C + 273.15
Use engineering units. For example: 5.23e-7
From:
° Fahrenheit
° Celsius
Kelvin
To:
° Fahrenheit
° Celsius
Kelvin
Related Websites
eFunda - Online Reference for Engineers
eFunda provides extensive Unit Conversion, Equations, and Material Data of value to engineers.
'Never regard study as a duty, but as the enviable opportunity to learn to know the liberating influence of beauty in the realm of the spirit for your own personal joy and to the profit of the community to which your later work belongs.'
Albert Einstein
(
1879-1955
)
Shop
Our Online Science Store
Happy and Sad Balls - Collisions Demo
$9.99
$5.99
Build Your Own Rubiks Cube Kit
$39.99
$19
8ft Jumbo Green Inflatable Alien
$39.99
$29.99
Brush Robot 4M STEM Kit
$19.99
$15.99
Doodling Robot 4M Kit
$19.99
$16.99
Digital Sound Meter
$29.99
$22.99
Solar Power Science Kit
$59.99
$47.95
Force and Reaction Fan Car
$24.99
$17.99