There are many units of measurement. The earliest recorded unit of measurement is the cubit, the length of an adult's forearm. Other early measurement units are the foot (the length of a human foot) and the palm (the length of a human palm). Modern standardized units of measurement include the meter (standardized in 1791 by the French Academy of Sciences) and the foot.

Quantity		Measurement Units	Equivalents/Equations
Length		inch (in or "), foot (ft or '), yard (yd), mile (mi) millimeter (mm), centimeter (cm), meter (m), kilometer (km), light-year (lt-yr), parsec	12 inches = 1 foot, 3 feet = 1 yard, 1760 yards = 1 mile 10mm = 1cm, 100cm = 1m, 1000m = 1km 1 in = 2.54 cm, 1 ft = 30.48cm, 1 mile = 1.609344 km 1 mm = 0.04 inch, 1 cm = 0.3937 inch, 1 km = 0.62 mile
Perimeter		(Same units as length) inch (in or "), foot (ft or '), yard (yd), mile (mi) millimeter (mm), centimeter (cm), meter (m), kilometer (km)	Perimeter of a square = 4*(side length) Perimeter of a rectangle = 2*(height+width) Perimeter of a circle = 2πr
Area		square inch (in2), square foot (ft2), square mile (mi2), acre square centimeter (cm2), square meter (m2), hectare	144 in2 = 1 ft2 1 sq inch = 6.45 sq cm 1 sq m = 10,000 sq cm = 10.764 sq ft = 1550 sq in
Volume		teaspoon (tsp), tablespoon (tbsp), fluid ounce (fl oz), cup (c), pint (pt), quart (qt), gallon (gal) cubic inch (in3), cubic foot (ft3), cubic mile (mi3) cubic cm (cm3 or cc), cubic m (m3), cubic km (km3)	3 tsp = 1 tbsp, 8 floz = 237ml = 1c, 2c = 1 pt , 2 pt = 1 qt, 4 qts = 1 gal 1 cubic inch = 16.387cc = 0.035pt 1cc = 1ml = 1gm = 0.061cubc inch
Weight/Mass		ounce (oz), pound (lb), stone, ton microgram(mcg), milligram (mg), gram (g), kilogram (kg)	16 oz = 1 lb, 2000 lbs = 1 ton 1 stone = 14 pounds 1000g = 1kg 1 ounce = 28.35 g, 1 pound = 453.59 g
Angle		degree (°), minute ('), second (") radian (rad)	360° in a circle, 90° is a right angle 60 minutes in a degree, 60 seconds in a minute 2π radians in a circle, 1 rad = 57.3°
Time		nanosecond (ns), millisecond (ms), second (s), minute (min), hour (hr), day, week (wk), fortnight, month, year (yr), decade, century, millenium	1,000,000,000ns = 1 sec, 1000ms = 1 sec, 60 sec = 1 min, 60 min = 1 hr, 24 hr = 1 day, 7 days = 1 wk, 365.24 days = 1 yr, 10 yr = 1 decade, 100 yr = 1 century, 1000 yr = 1 millenium
Temperature		degrees Fahrenheit (°F), degrees Celsius (°C), degrees Centigrade, Kelvin (K)	°F = °C x 9/5 + 32 °C = (°F - 32) x 5/9 °C = K - 273.15 K=°C + 273.15
Money		penny (cent), nickel, dime, quarter, dollar pence, pound	5 cents = 1 nickel, 10 cents = 1 dime, 25 cents = 1 quarter, 4 quarters = 1 dollar 100 pence = 1 pound

Of course, there are many other measurable quantities, including surface area, velocity, acceleration, density, pressure, energy, power, altitude, noise, electrical current, electrical resistance, electrical charge, humidity, concentration of a solution, frequency, luminosity, magnetic field strength, power of an earthquake, the strength of a hurricane, and many others.

Books to Print

How Long is a Year? A short activity book about the year, month, week, and day to print for early readers.

How Long Is It? A Printable Activity Book A short, printable book about measurement for early readers. The book has pages for the student to cut out, items to measure on a printed ruler and pictures to color. The pages include measuring a ruler, shark, pen, flute, snail, fork, pencil, violin, brush, bat, and arrow.

How Tall Is It? A Printable Activity Book A short, printable book about measurement for early readers. The book has pages for the student to cut out, items to measure on a printed ruler and pictures to color. The pages include measuring a ruler, gorilla, girl, door, lollipop, flower, ladder, giraffe, penguin, tree, and T. rex.

Pumpkin Patch Perimeters: All Around the Farm Printable Book A short, printable book about perimeters, using pumpkin patch terms, including the perimeters of a pumpkin patch, chicken coop, pigpen, corn field, goat pen, horse corral, barnyard, and vegetable garden.

Estimating Measurement

Estimating Metric Measurements Worksheet In this worksheet, the student estimates lengths in metric measurements. For example, "What common object is about 1 meter long? Or go to sample answers.

Estimating US Measurements Worksheet In this worksheet, the student estimates lengths in measurements. For example, "What common object is about 1 inch long, tall, or across? Or go to sample answers.

Perimeter

Perimeter of Rectangles Printout Determine the perimeter of the rectangles on this printable worksheet. Or go to the answers.

Perimeter of Grids Printout Determine the perimeter of the irregular rectangular grids on this printable worksheet. Or go to the answers.

Pumpkin Patch Perimeters: All Around the Farm A Printable Book A short, printable book about perimeters, using pumpkin patch terms, including the perimeters of a pumpkin patch, chicken coop, pigpen, corn field, goat pen, horse corral, barnyard, and vegetable garden.

Area

Area of Rectangles Printout #1 Determine the area of the rectangles on this printable worksheet. Or go to the answers.

Area of Rectangles Printout #2 Determine the area of the rectangles on this printable worksheet. Or go to the answers.

Area of Rectangles Printout #3 Determine the area of the rectangles on this printable worksheet. Or go to the answers.

Area of Grids Printout #3 Determine the area of the grids on this printable worksheet. Or go to the answers.

Temperature

Learn about temperature and print out many different types of worksheets.

Time

Learn about time and print out many different types of worksheets.

Measurement Terms

Measurement-Related Vocabulary Word List A list of words related to weights and measures.	Match the Quantities to the Measurement Units Match 10 measurable quantities to the units they could be measured in. Quantities: Your age, Your weight, Your height, Your temperature, The area of your classroom, The area of your city, How long it takes to run a mile, What a gumball costs, What shoes cost, The volume of water in a bathtub, The weight of a building. Units: pounds, feet, years, square feet, degrees F, degrees, square miles, dollars, cents, tons, cubic feet. Or go to the answers.	Match the Measurement Words to their Abbreviations Match measurement words to their abbreviations. Words: height, weight, number, volume, degree, dozen, percent, altitude, latitude, longitude, teaspoon, tablespoon, inch, foot, yard, mile, miles per hour, ounce, pound, ton, gallon, quart, pint, cup, Fahrenheit. Or go to the answers.
Measurement Word Abbreviations Write the abbreviations for common non-metric measurement words, including length, volume and weight words. Or go to the answers.	Match the Metric Measurement Words to their Abbreviations Match metric measurement words to their abbreviations. Words: height, weight, number, volume, degree, dozen, percent, altitude, latitude, longitude, teaspoon, tablespoon, meter, centimeter, decimeter, kilometer, kilometers per hour, gram, centigram, kilogram, milligram, liter, millilter, Kelvin, Centigrade, Celsius. Or go to the answers.	Metric Measurement Word Abbreviations Write the abbreviations for common metric measurement words, including length, volume and weight words. Or go to the answers.
Match Liquid Measurement Terms Match the liquid measurement terms, including cup, pint, quart, half gallon, gallon, liter, deciliter, centiliter, ounce. Answers	Write Measurement Words by Category Write 5 measurement words for each category. The categories include: Units of Length, Units of Weight, Units of Time, Units of Area, Units of Volume, Temperature Words, Measuring Tools , Miscellaneous Measurement Words. Or go to sample answers.	Metric Measurement: Write a Question for Each Answer In this worksheet, the student is given a series of short answers using metric measurement words. For each answer, the student writes a short question.

Label Measurement Words in Many Languages:

Label Measurement Terms Label the measurement terms in English, including yard, foot, inch, square foot, meter, centimeter, millimeter, square meter. Answers

Measurement Terms in French Label the measurement terms in French, including yard, foot, inch, square foot, meter, centimeter, millimeter, square meter. Answers

Measurement Terms in German Label the measurement terms in German, including yard, foot, inch, square foot, meter, centimeter, millimeter, square meter. Answers

Measurement Terms in Italian Label the measurement terms in Italian, including yard, foot, inch, square foot, meter, centimeter, millimeter, square meter. Answers

Measurement Terms in Spanish Label the measurement terms in Spanish, including yard, foot, inch, square foot, meter, centimeter, millimeter, square meter. Answers

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