Enter units for numerical responses

Updated 05 Mar 2024

When you are asked to enter units for numerical questions, any of the units in the tables below are allowed, along with Standard SI prefixes for metric units.

Learning Catalytics also accepts equivalent responses that use different numbers and units, and compound units. For information about including these units in expressions, see Enter algebraic expressions.

Note: If you are asked to include units and don't include units, your answer will be incorrect. This includes currency units.

  • 2 ft, 24 in
  • 3 m, 3 meters, 300 cm
  • 100$, 100USD, 100dollar, 10000cents
  • m/s^2
  • kg*m^2/s^2 (equivalent to a joule)

Units allowed and their aliases

You can enter the unit using anything in the Unit or Aliases column.

Unit Aliases
dozen doz, dz
each  
gross gr
Unit Aliases
degree deg, degrees
grad gradian, grads
radian rad, radians
rotation b, bit
steradian sr, steradians
Unit Aliases
acre acres
hectare  
sqft  
Unit Aliases
cents  
dollar USD

Important: If you are asked to include units, all currency units must be appended to your answer to be graded correct.

Unit Aliases
byte B, bytes
dot dots
pica P, picas
pixel px, pixels
point points
ppi  
Unit Aliases
gauss G
henry H, henries
maxwell Mx, maxwells
ohm Ohm, ohms
oersted Oe, oersteds
siemens S
tesla T, teslas
weber Wb, webers
Unit Aliases
ampere A, amperes, amp, amps
btu Btu, Btus, btus
calorie cal, calories
Calorie Cal, Calories
Gray Gy, gray, grays
katal kat
coulomb C coulombs
erg ergs
farad F, farads
horsepower hp
joule J, joules
therm Therm, thm, therms
volt V, volts
watt W, Watt, watts
Unit Aliases
atm ATM, atmosphere, atmospheres
bar bars
dyne dyn
inh2o inH2O, inAq
mmHg Torr, torr
newton N, newtons
pascal Pa, pascals
poise P
pound-force lbf
poundal pdl, poundals
psi cmH2O, cmh20, cmAq
slug slugs
stokes ST
Unit Aliases
angstrom ang, angstroms
AU astronomical-unit
foot ft, feet, '
fathom fathoms
furlong fur, furlongs
inch in, inches, "
league leagues
light-minute lmin
light-year ly
meter

m, meters, metre, metres
mil mils
mile mi, miles
naut-league nleague, nleagues
naut-mile nmi, M, NM
parsec pc, parsecs
rod rd, rods
survey-foot sft, sfoot, sfeet
yard yd, yards
Unit Aliases
AMU u, amu
carat ct, carats
dalton Da, daltons
gram g, grams, gramme, grammes
metric-ton tonne
once oz, ounces
pound lb, lbs, lbm, pound-mass, pounds, #
short-ton tn, ton
Unit Aliases
becquerel Bq, becquerels
curie Ci, curies
lux lx
sievert Sv, sieverts
roentgen R
Unit Aliases
celsius degC, centigrade
fahrenheit degF
kelvin degK, tempK
rankine degR
Unit Aliases
century centuries
day d, days
decade decades
fortnight fortnights
hour h, hr, hrs, hours
minute min, minutes
second s, sec, second, seconds
week wk, weeks
year y, yr, years, annum
Unit Aliases
cfm CFM, CFPM
gee standard-gravitation
kph kt, kn, kts, knot, knots
Unit Aliases
cup cu, cups
fluid-ounce floz, fluid-ounces
gallon gal, gallons
liter l, L, liters, litre, litres
pint pt, pints
quart qt, quarts
tablespoon tbs, tbsp, tablespoons
teaspoon tsp, teaspoons
Unit Aliases
base-pair bp
candela cd
cell cells
decibel dB, decibels
molar M
mole mol
molecule molecules
nucleotide nt
percent %
redshift z, red-shift
unit

U, enzUnit

  • ampere
  • angstrom 1/10 nm ang angstrom angstroms
  • atm 101325 Pa atm ATM atmosphere atmospheres
  • AU 149597870700 m AU astronomical-unit
  • bar 100 kPa bar bars
  • base-pair 1 each bp base-pair
  • becquerel 1 1/s Bq becquerel becquerels
  • btu 2320092679909671/2199023255552 J Btu btu Btus btus
  • byte
  • Calorie 1 kcal Cal Calorie Calories
  • calorie 4.184 J cal calorie calories
  • candela cd candela
  • carat 1/5000 kg ct carat carats
  • cell 1 each cells cell
  • celsius 1 degK degC celsius centigrade
  • cents 1/100 dollar lm lumen
  • century 100 years century centuries
  • cfm 1 ft^3/minute cfm CFM CFPM
  • coulomb 1 A*s C coulomb coulombs
  • count 1 each doz dz dozen
  • cup 1/16 gal cu cup cups
  • curie 37 GBq Ci curie curies
  • dalton 1 amu Da dalton daltons
  • day 24 hours d day days
  • decade 10 years decade decades
  • decibel dB decibel decibels
  • degree pi/180 radian deg degree degrees
  • dollar
  • dot 1 each dot dots
  • dyne 1/100000 N dyn dyne
  • each each
  • erg 1 g*cm^2/s^2 erg ergs
  • fahrenheit 2501999792983609/4503599627370496 (~ 1/1.8) degK degF fahrenheit
  • farad 1 A*s/V F farad farads
  • fathom 6 ft fathom fathoms
  • fluid-ounce 1/128 gal floz fluid-ounce fluid-ounces
  • foot 12 inches ft foot feet '
  • fortnight 2 weeks fortnight fortnights
  • furlong 1/8 mile fur furlong furlongs
  • gallon 231 in^3 gal gallon gallons
  • gauss 100 microT G gauss
  • gee Unit(Rational(196133,20000), 'm/s^2') # equivalent to 9.80665 m/s^2 gee standard-gravitation
  • grad pi/200 radian grad gradian grads
  • gram 1/1000 kg g gram grams gramme grammes
  • gross 12 dozen gr gross
  • hectare 10000 m^2 acre acres
  • henry 1 J/A^2 H henry henries
  • hertz 1 1/s Hz hertz
  • horsepower 33000 ft*lbf/min hp horsepower
  • hour 60 minutes h hr hrs hour hours
  • inch 254/10000 meter in inch inches "
  • inh2o 1 in * 1 gee * density_of_water inH2O inh2o inAq
  • joule 1 N*m J joule joules
  • katal 1 mole/sec kat katal
  • kelvin
  • kilogram kg kilogram kilograms
  • kph 1 kilometer/hour kt kn kts knot knots
  • league 3 miles league leagues
  • light-minute 1 min * speed_of_light lmin light-minute
  • light-year 1 y * speed_of_light ly light-year
  • lux 1 lumen/m^2 Gy gray grays
  • maxwell 1 gauss*cm^2 Mx maxwell maxwells
  • meter m meter meters metre metres
  • metric-ton 1000 kg tonne
  • mil 1/1000 inch mil mils
  • mile 5280 ft mi mile miles
  • minute 60 seconds min minute minutes
  • mmHg 1 mm * 1 gee * density_of_mercury Torr torr
  • molar 1 mole/l M molar
  • mole
  • molecule 1 each molecule molecules
  • naut-league 3 nmi nleague nleagues
  • naut-mile 1852 m nmi M NM
  • newton 1 kg*m/s^2 N newton newtons
  • nucleotide 1 each nt
  • oersted 250/pi A/m Oe oersted oersteds
  • ohm 1 V/A Ohm ohm ohms
  • ounce 1/16 lbs oz ounce ounces
  • parsec 3.26163626 ly pc parsec parsecs
  • pascal 1 kg/m*s^2 Pa pascal pascals
  • percent 1/100 % percent
  • pica 12 point P pica picas
  • pint 1/8 gal pt pint pints
  • pixel 1 each px pixel pixels
  • point 1/72 ft point points
  • poise dPa*s P poise
  • pound 45359237/10^8 kg lbs lb lbm pound-mass pound pounds #
  • poundal 1 lb * 1 ft/s^2 pdl poundal poundals
  • pound-force 1 lb * 1 gee lbf pound-force
  • ppi 1 pixel/inch u AMU amu
  • psi 1 lbf/in^2 cmH2O cmh2o cmAq
  • quart 1/4 gal qt quart quarts
  • radian
  • rankine 1 degF degR rankine
  • redshift 1.302773e26 m z red-shift
  • rod 33/2 feet rd rod rods
  • roentgen 2.58e-4 C/kg R roentgen
  • rotation 2*pi radian b bit
  • second
  • short-ton 2000 lbs ton tn
  • siemens 1 A/V S siemens
  • sievert 1 J/kg Sv sievert sieverts
  • slug 1 lbf*s^2/ft slug slugs
  • sqft 1 ft^2 l L liter liters litre litres
  • steradian sr steradian steradians
  • stokes 1 cm^2/s St stokes
  • survey-foot 1200/3937 meter sft sfoot sfeet
  • tablespoon 1/2 floz tbs tbsp tablespoon tablespoons
  • teaspoon 1/3 tablespoon tsp teaspoon teaspoons
  • tempC 1 tempK ls lsec light-second
  • tempK
  • tesla 1 V*s/m^2 T tesla teslas
  • therm 100 kBtu thm therm therms Therm
  • unit 1/60 microkatal U enzUnit
  • volt 1 W/A V volt volts
  • watt 1 N*m/s W Watt watt watts
  • weber 1 V*s Wb weber webers
  • week 7 days wk week weeks
  • yard 3 ft yd yard yards
  • year 31556926 seconds (365.24219907407405 days) y yr year years annum