Conversion Between Metric Systems and Customary Systems
For ACT Students
The ACT is a timed exam...60 questions for 60 minutes
This implies that you have to solve each question in one minute.
Some questions will typically take less than a minute a solve.
Some questions will typically take more than a minute to solve.
The goal is to maximize your time. You use the time saved on those questions you
solved in less than a minute, to solve the questions that will take more than a minute.
So, you should try to solve each question correctly and timely.
So, it is not just solving a question correctly, but solving it correctly on time.
Please ensure you attempt all ACT questions.
There is no negative penalty for any wrong answer.
For JAMB Students
Calculators are not allowed. So, the questions are solved in a way that does not require a calculator.
Metric to Metric Conversions
Prefix
Symbol
Multiplication Factor
yocto
y
$10^{-24}$
zepto
z
$10^{-21}$
atto
a
$10^{-18}$
femto
f
$10^{-15}$
pico
p
$10^{-12}$
nano
n
$10^{-9}$
micro
$\mu$
$10^{-6}$
milli
m
$10^{-3}$
centi
c
$10^{-2}$
deci
d
$10^{-1}$
deka
da
$10^1$
hecto
h
$10^2$
kilo
K
$10^3$
mega
M
$10^6$
giga
G
$10^9$
tera
T
$10^{12}$
peta
P
$10^{15}$
exa
E
$10^{18}$
zetta
Z
$10^{21}$
yotta
Y
$10^{24}$
Customary to Customary Conversions
Quantity
Customary
Customary
Unit Conversion Factor
Length
inch (in)
foot (ft)
$12\:inches = 1\:ft$
Length
foot (ft)
yard (yd)
$3\:ft = 1\:yd$
Length
yard (yd)
mile (mi)
$1760\:yd = 1\:mi$
Length
foot (ft)
mile (mi)
$5280\:ft = 1\:mi$
Length
rod/pole
yards (yd)
$1\:rod = 5.5\:yd$
Length
furlong
rod
$1\:furlong = 40\;rod$
Length
fathom
feet (ft)
$1\:fathom = 6\;ft$
Length
league/marine
nautical miles
$1\:league = 3\;nautical\;\;miles$
Mass
pound (lb)
ounce (oz)
$1\:lb = 16\:oz$
Mass
short ton (ton)
pound (lb)
$1\:short\:ton = 2000\:lb$
Mass
long ton
pound (lb)
$1\:long\:ton = 2240\:lb$
Mass
stone
pound (lb)
$1\:\:stone = 14\:lb$
Mass
long ton
stone
$1\:long\:ton = 160\:stones$
Area
acre (acre)
square feet ($ft^2$)
$1\:acre = 43560\:ft^2$
Volume
quart (qt)
pint (pt)
$1\:qt = 2\:pt$
Volume
pint (pt)
cup (cup)
$1\:pt = 2\:cups$
Volume
quart (qt)
cup (cup)
$1\:qt = 4\:cups$
Volume
quart (qt)
fluid ounce (fl. oz)
$1\:qt = 32\:fl.\:oz$
Volume
pint (pt)
fluid ounce (fl. oz)
$1\:pt = 16\:fl.\:oz$
Volume
cup (cup)
fluid ounce (fl. oz)
$1\:cup = 8\:fl.\:oz$
Volume
gallon (gal)
quart (qt)
$1\:gal = 4\:qt$
Volume
gallon (gal)
quart (pt)
$1\:gal = 8\:pt$
Volume
gallon (gal)
cup (cup)
$1\:gal = 16\:cups$
Volume
gallon (gal)
fluid ounce (fl. oz)
$1\:gal = 128\:fl.\:oz$
Volume
gallon (gal)
cubic inches ($in^3$)
$1\:gal = 231\:in^3$
Metric to Customary Conversions
Measurement
Metric
Customary
Unit Conversion Factor
Length
meter (m)
foot (ft)
$1\:ft = 0.3048\:m$
Length
nautical miles
kilometer (km)
$1\:nautical\;\;mile = 1.852\;km$
Mass
gram (g)
pound (lb)
$1\:lb = 453.59237\:g$
Mass
metric ton (tonne)
kilogram (kg)
$1\:tonne = 1000\:kg$
Volume
liter or cubic decimeters (L or $dm^3$)
gallons (gal)
$1\:L = 0.26417205\:gal$
Solve all questions.
Use at least two methods as applicable.
State the measurement.
Show all work.
NOTE: Unless specified otherwise:
(1.) Use only the tables provided for you.
(2.) Please do not approximate intermediate calculations.
(3.) Please do not approximate final calculations. Leave your final answer as is.
(1.) Using the conversion rate of 1kg = 2.2lbs, convert 3954lb to kg