How to use the CONVERT Function in Excel

In this article, we will learn about how to use the CONVERT function in Excel.

The CONVERT function converts the value of one measurement to another measurement. For example, weight measurements like pounds to gallons, length measurements like meters to feet or temperature measurements like Degree Celsius to Fahrenheit, etc.

Here are the types of measurements with their keywords which can be used to convert values.


gram g
slug sg
Pound mass lbm
U u
ounce mass ozm
grain grain
U.S. hundredweight cwt or shweight
Imperial hundredweight uk_cwt or lcwt
stone stone
ton ton
Imperial ton uk_ton or LTON


Meter m
Statute mile mi
Nautical mile nmi
inch in
foot ft
yard yd
Angstrom ang
ell ell
Light year ly
Parsec pc
pica pica


year yr
day day
hour hr
minute mn or min
second sec or s


Pascal pa
Atmosphere atm
mm of mercury mmHg
PSI psi
Torr Torr


Newton N
Dyne dyn
Pound force lbf
Pond pond


Joule J
Erg e
Thermodynamic calorie c
IT calorie cal
Electron - volt eV
Horsepower - hour Hph
Watt - hour Wh
Foot - pound flb


Horsepower HP
Pferdestärke PS
Watt W


Degree Celsius C
Degree Fahrenheit F
Kelvin K
Degree Rankine Rank
Degree Réaumur Reau

Liquid Measure

Teaspoon Tsp
Modern Teaspoon tspm
Cup cup
U.S. pint pt
U.K. pint uk_pt
Quart qt
Imperial quart uk_qt
Gallon gal
Imperial gallon uk_gal
Litre l


Cubic angstrom ang3
U.S. oil barrel barrel
U.S. bushel bushel
Cubic feet ft3
Cubic inch in3
Cubic light-year ly3
Cubic meter m3
Cubic Mile mi3
Cubic yard yd3
Cubic nautical mile nmi3
Cubic Pica pica3
Measurement ton (freight ton) MTON
Gross Registered Ton GRT (regton)


International acre uk_acre
statute acre us_acre
Square angstrom and2
Are ar
Square feet ft2
Hectare ha
Square inches in2
Square light-year ly2
Square meters m2
Morgen morgen
Square miles mi2
Square nautical miles nmi2
Square Pica pica2
Square yards yd2


Bit bit
Byte byte

CONVERT function takes three arguments and returns the number after conversion to_unit mentioned as argument

=CONVERT ( number, from_unit, to_unit)

Number : number to convert
From_unit : unit of the number
To_unit : unit, number to be converted to

Let’s understand this function using it as an example.
Here we have a set of numbers in A2 : A10 and we need to convert the numbers from_unit to to_unit.

For the first number, we need to convert the number from one pound mass to kilograms.

Use the formula:

= CONVERT ( A2, B2, C2 )

Here all the arguments to the function are given as cell reference.

Press Enter to get the result.

One pound mass is equal to 0.454 kilograms. See you didn't have to use your calculator for this and it's easy to use.

Now copy the formula to get different CONVERT values to the remaining cells and formula as shown in the snapshot below.

As you can see from the outcomes in the snapshot above. The function returns an error in D8 cell as conversion between two different measurements is not possible.

Use the prefix measurements as shown in the table below.

yotta Y
zetta Z
exa E
peta P
tera T
giga G
mega M
kilo k
hecto h
dekao da
deci d
centi c
milli m
micro u
nano n
pico p
femto f
atto a
zepto z
yocto y

Use the above prefixes for accurate values.

Here are some of the observations gathered using the CONVERT function.


  1. The CONVERT function returns #VALUE! Error if the data type argument is non -numeric.
  2. The CONVERT function is case sensitive function.
  3. The CONVERT function returns #NA error :
    1. If the unit is invalid or doesn't exist.
    2. If unit's prefix is invalid.
    3. If the units belong to the different groups.

Hope you understood How to use the CONVERT function in Excel. Explore more articles on number conversion function here. Please state your query in the comment box below. We will assist you.

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