Highlight field, type in the unit and get the conversion for all other units
Introduction
A Fast and Comprehensive Unit Converter for 15 Categories
Welcome to our powerful and intuitive unit conversion tool. This page features an extensive calculator that allows you to instantly convert between 339 different units across 15 categories.
Simply type a value into any field, and watch as all other units in that category update in real-time. Our comprehensive converter covers all your needs, from common measurements like Weight, Mass, Distance, and Speed to technical units for Pressure, Power, Energy, and Flow Rate. It's an essential tool for engineers, students, and anyone needing a fast and reliable conversion.
Page Table of Contents
Use these links to go directly to desired calculator
The SI (International System of Units) prefixes are used to form decimal multiples and sub multiples of SI units (see left table below). The number names show the corresponding names for each multiplier used in the english language (see right table below).
SI Power Prefixes
Prefix
Symbol
Multiplier
yotta
Y
1024
zetta
Z
1021
exa
E
1018
peta
P
1015
tera
T
1012
giga
G
109
mega
M
106
kilo
k
103
hecto
h
102
deka
da
101
deci
d
10-1
centi
c
10-2
milli
m
10-3
micro
µ
10-6
nano
n
10-9
pico
p
10-12
femto
f
10-15
atto
a
10-18
zepto
z
10-21
yocto
y
10-24
Number Names
USA & UK
UK
(long scale)*
Multiplier
septillion
quadrillion
1024
sextillion
trilliard
1021
quintillion
trillion
1018
quadrillion
billiard
1015
trillion
billion
1012
billion
milliard
109
million
million
106
thousand
thousand
103
hundred
hundred
102
ten
ten
101
tenth
tenth
10-1
hundredth
hundredth
10-2
thousandth
thousandth
10-3
millionth
millionth
10-6
septillionth
milliardth
10-9
sextillionth
billionth
10-12
quadrillionth
billiardth
10-15
quintillionth
trillionth
10-18
sextillionth
trilliardth
10-21
septillionth
quadrillionth
10-24
*Long scale officially not used since 1974
Scientific Notation and E notation
Scientific notation is the way to easily handle very large numbers or very small numbers. E notation is a variation of this and is used in computers, calculators and this web page.
Example 1: Ordinary decimal notation: 100 Scientific notation: 1 x 102 or 1.00 x 102 (sometimes zeros are left to define precision) E notation: 1e2 or 1.00e2 (sometimes zeros are also left to define precision)
Example 2: Ordinary decimal notation: 1000 Scientific notation: 1 x 103 or 1.000 x 103 (sometimes zeros are left to define precision) E notation: 1e3 or 1.00e3 (sometimes zeros are also left to define precision)
Example 3: Ordinary decimal notation: 0.100160 Scientific notation: 1.0061 x 10-1 or 1.00160 x 10-1 (sometimes zeros are left to define precision) E notation: 1.0016e-1 or 1.00160e-1 (sometimes zeros are also left to define precision)
Example 4: Ordinary decimal notation: 0.0002 Scientific notation: 2 x 10-4 E notation: 2e-4
Help / How to Use
Using this Conversions Page
Unlike many other conversions tools on the web, this page offers a very fast and comprehensive set javascript-based converters. No need to select from cumbersome drop-down menus. Get units simultaneous converted for a particular category of measurement.
Example:
Convert the weight of 150 pounds to kilograms:Step 1:
Highlight the current value inside the box corresponding to the unit you have to convert. In this case it is pounds (lbs).
Step 2:
Type in 150 over the highlighted value and instantly read the answer for kilograms (kg). It shows 68.038855 which you can round up as you wish. So if you would like to round it to the nearest pound the answer will be 68 kilograms. In order to leave the precision up to the user, several digits will always be displayed for the results. Notice you get all the other units as well!
Note that all the unit abbreviations are shown on the right vertical column of this page.
Disclaimer
Terms of Use for this Conversions Page
Your use of this web site or of any content presented in any and all areas of the web site indicates your acknowledgment and agreement to our Terms of Use and Disclaimer. Disclaimer We have done our best to make sure these conversions are both accurate and correct, but we take no responsibility for any inaccurate or incorrect conversions produced by this site. We do not guarantee the accuracy of any of the information contained on, downloaded or accessed from this web site. As a visitor to our web site, you acknowledge and agree that any reliance on or use by you of any information available on this web site shall be entirely at your own risk. In no event shall we be liable for any direct, indirect, consequential or exemplary damages arising from the use or the performance of this web site.
On our conversion calculators, we have used our best efforts to provide accurate results. Browser, computer and other software differences may affect the accuracy of our conversions. Additionally rounding errors limit the accuracy of the conversions as well.
Please see also our disclaimer page for a complete disclaimer for our site.
If you find any errors, kindly notify us at the email below:
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Units and Abbreviations
Weight and Force
lbs -
pounds
kg or kp -
kilogram or kilopond
oz -
ounce
g -
gram
kipf -
kilopound
N or Newton -
Newton
ton (short) -
short ton
ton (Metric) -
Metric ton
IMP ton (long) -
Imperial ton or long ton
dyn or dyne -
dyne
poundal -
poundal
kN -
kilonewtons
Mass
kg -
kilograms
g -
grams
lb -
pounds
oz -
ounce
slug -
slug
lbt -
pound troy
ton (Metric) -
Metric ton
IMP ton (long) -
imperial ton (long)
ton (short) -
ton (short)
ozt -
ounce troy
ct -
carat
grain or gr -
grain troy
u -
atomic mass units
dram (avoir) -
dram (avoirdupois)
dram (apoth) -
dram (apothecary)
Length or Distance
nm -
nanometer
µm -
micrometer
mm -
millimeters
cm -
centimeter
m -
meters
km or klick-
kilometer
point or p -
point
pica or P̸ -
pica
in -
inches
ft -
feet
yd or yard -
yard
sm -
statute mile
link or li -
link
rd -
rod or pole
chain -
chain
furlong -
furlong
league -
league
fathom -
fathom
cable or cb -
cable
Nm -
Nautical miles
mil -
mil or thou
μm or micron -
micron or micrometer
French or Fr -
French
twip -
twip or twentieth of a point
Planck or lP-
Planck distance
Å -
Angstrom
Bohr radius -
Bohr radius or a0
parsec -
parsec
AU -
Astronomical Unit
ly -
light year
light-min -
light-minute
light-sec -
light second
light-milisec -
light-milisecond
light-microsec -
light-microsecond
light-nanosec -
light-nanosecond
Temperature
oF -
degrees Fahrenheit
oC -
degrees Celsius
oR -
degrees Rankine
K -
Kelvin
oDe -
degrees Delisle
oN -
degrees Newton
oRé -
degrees Réaumure
Rø -
degrees Rømer
eV -
electron Volt
KeV -
kilo electron Volt
MeV -
mega electron Volt
Time
y or yr(s) -
year(s)
d or day(s) -
day(s)
h or hr(s) -
hour(s)
m or min(s) -
minute(s)
s or sec(s) -
second(s)
Speed
m/s -
meters per second
knot or kts-
knot(s) or (Nm/h)
km/h -
kilometers per hour
sm/h -
statute miles per hour
ft/s -
feet per second
cm/s -
centimeter per second
sm/s -
statute miles per second
m/min -
meters per minute
ft/minute -
feet per minute
cm/minute -
centimeters per minute
Nm/min -
Nautical miles per minute
km/min -
kilometers per minute
sm/min -
statute mile per minute
km/s -
kilometers per second
Pressure
Pa or N/m2-
Pascal
atm -
atmospheres
bar -
bar
lbf /in2 or psi -
pounds per square inch
mmHg -
millimeters of mercury
torr -
torr (Torricelli)
hPa -
hectopascal
mbar -
millibar
inHg -
inches of mercury
inH2O -
inches of water
lbf /m2 or lbs/m2-
pounds per square meter
lbf /ft2 or lbs/ft2-
pounds per square foot
lbf /cm2 or lbs/cm2-
pounds per square centimeter
kgf /m2 or kg/m2-
kilograms per square meter
kgf /ft2 or kg/ft2-
kilograms per square foot
kgf /cm2 or kg/cm2-
kilograms per square centimeter
N/ft2 -
Newtons per square foot
N/m2 -
Newtons per square meter (same as Pa)
N/in2 -
Newtons per square inch
Volume
m3 -
cubic meters
cm3 -
cubic centimeters
yd3 -
cubic yards
ft3 -
cubic feet
in3 -
cubic inches
liter -
liter
IMP gal -
imperial gallon
US gal -
US gallon
qt or quart -
quart
pt or pint -
pint
ml -
milliliter
fl oz -
fluid ounce
IMP oz -
imperial ounce
tbsp -
table spoon
tsp -
tea spoon
bu -
bushel
peck -
peck
fbm -
foot board measure
galC -
gallon C
barrels of oil -
barrels of oil
Area
m2 -
square meters
cm2 -
square centimeters
yd2 -
square yards
ft2 -
square feet
in2 -
square inches
km2 -
square kilometers
ha -
hectare
a -
are
sm2 -
square statute miles
Nm2 -
square Nautical miles
acre -
acre
mil2 -
square mils
mm2 -
square millimeter
Power
w or watts -
watts
hp (Metric) -
horsepower (Metric)
hp or hp(l)-
mechanical horsepower
ft x lb / s -
foot pound per second
ft x lb / min -
foot pound per minute
Btu / min -
British thermal units per minute
Btu / hr -
British thermal units per hour
erg / s -
ergs per second
kcal / s -
kilocalories per second
MeV / s -
Mega electron Volts per second
eV / s -
electron Volts per second
Btu / s -
British thermal units per second
Flow (Volume)
m3/s -
cubic meters per second
cm3/s -
cubic centimeters per second
ft3/s -
cubic feet per second
in3/s -
cubic inches per second
liter/s -
liters per second
US gal /s -
US gallons per second
IMP gal /s -
imperial gallons per second
qt/s or quart/s -
quarts per second
m3/min -
cubic meters per minute
cm3/min -
cubic centimeters per minute
ft3/min -
cubic feet per minute
in3/min -
cubic inches per minute
liter/min -
liters per minute
US gal /min -
US gallons per minute
IMP gal /min -
imperial gallons per minute
qt/min -
quarts per minute
m3/hr -
cubic meters per hour
cm3/hr -
cubic centimeters per hour
ft3/hr -
cubic feet per hour
in3/hr -
cubic inches per hour
liter/hr -
liters per hour
US gal /hr -
US gallons per hour
IMP gal /hr -
imperial gallons per hour
qt/hr -
quarts per hour
Flow (Mass)
kg/s -
kilograms per second
g/s -
grams per second
lb/s -
pounds per second
oz/s -
ounce per second
slug/s -
slug per second
kg/min -
kilograms per minute
g/min -
grams per minute
lb/min -
pounds per minute
oz/min -
ounce per minute
slug/min -
slug per minute
kg/hr -
kilograms per hour
g/hr -
grams per hour
lb/hr -
pounds per hour
oz/hr -
ounce per hour
slug/hr -
slug per hour
Angle
deg or o -
degrees
rad -
radians
grad -
gradian
arcmin or " -
minute of arc
arcsec or ' -
second of arc
Acceleration
m/s2 -
meters per second squared
ft/s2 -
feet per second squared
cm/s2 -
centimeter per second squared
in/s2 -
inches per second squared
km/s2 -
kilometers per second squared
sm/s2 -
statute miles per second squared
Nm/s2 -
Nautical miles per second squared
g's2 -
acceleration of gravity
m/min2 -
meters per minute squared
ft/min2 -
feet per minute squared
cm/min2 -
centimeters per minute squared
in/min2 -
inches per minute squared
km/min2 -
kilometers per minute squared
sm/min2 -
statute miles per minute squared
Nm/min2 -
kilometers per minute squared
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