Area and Perimeter Worksheets
Updated October 2026 · 9 free printables
Perimeter of rectangles with labeled sides, area by counting unit squares, area by multiplying length and width, both on one page, and L-shaped figures that need to be split into two rectangles.
All 9 Area and Perimeter Worksheets, One by One
Here is a closer look at every page in this collection: what it practices, which grade it fits and a tip for each one.
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1. Perimeter of Rectangles
A free printable perimeter of rectangles worksheet with an answer key. Add up all four sides to find the perimeter. It is aimed at third grade, around ages 8 to 9. Line the object up with the 0 on the ruler, not with the end of the ruler.
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2. Perimeter of Rectangles (Set 2)
A free printable perimeter of rectangles (set 2) worksheet with an answer key. Add up all four sides to find the perimeter. It is aimed at third grade, around ages 8 to 9. Guess first, then measure: kids get better at estimating with every try.
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3. Area With Unit Squares
A free printable area with unit squares worksheet with an answer key. Count the squares inside each rectangle to find its area. It is aimed at third grade, around ages 8 to 9. Line the object up with the 0 on the ruler, not with the end of the ruler.
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4. Area With Unit Squares (Set 2)
A free printable area with unit squares (set 2) worksheet with an answer key. Count the squares inside each rectangle to find its area. It is aimed at third grade, around ages 8 to 9. Guess first, then measure: kids get better at estimating with every try.
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5. Area of Rectangles
A free printable area of rectangles worksheet with an answer key. Multiply length by width to find the area. It is aimed at third grade, around ages 8 to 9. Line the object up with the 0 on the ruler, not with the end of the ruler.
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6. Area and Perimeter of Rectangles
A free printable area and perimeter of rectangles worksheet with an answer key. Find both the perimeter and the area of each rectangle. It is built for fourth grade, around ages 9 to 10. Measure a few things at home too, like a spoon, a shoe or a toy car.
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7. Area and Perimeter of Rectangles (Set 2)
A free printable area and perimeter of rectangles (set 2) worksheet with an answer key. Find both the perimeter and the area of each rectangle. It is built for fourth grade, around ages 9 to 10. Line the object up with the 0 on the ruler, not with the end of the ruler.
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8. Area and Perimeter of L-Shapes
A free printable area and perimeter of l-shapes worksheet with an answer key. Split each shape into two rectangles to find the area. Add all six sides for the perimeter. Expect it to take fourth graders about 15 to 20 minutes with careful work. Measure a few things at home too, like a spoon, a shoe or a toy car.
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9. Area and Perimeter of L-Shapes (Set 2)
A free printable area and perimeter of l-shapes (set 2) worksheet with an answer key. Split each shape into two rectangles to find the area. Add all six sides for the perimeter. Expect it to take fourth graders about 15 to 20 minutes with careful work. Line the object up with the 0 on the ruler, not with the end of the ruler.
Tips for area and perimeter worksheets
- Perimeter: add all the sides. For a rectangle, double the length plus the width.
- Area: multiply length by width and write 'square' units.
- For L-shapes, draw a line to split the figure into two rectangles first.
Fun math facts
- Perimeter comes from the Greek words peri (around) and metron (measure).
- A 1 by 5 rectangle and a 3 by 3 square both have a perimeter of 12, but areas of 5 and 9.
- Of all rectangles with the same perimeter, the square has the biggest area.
Fun ways to use your printables
- Measure the perimeter of a table or a rug with a tape measure and compare with an estimate.
- Build rectangles with 12 toothpicks and find all the different areas you can make.
- Draw a floor plan of your room on grid paper and work out the area of each piece of furniture.
How to print
Click Download PDF and print at 100% on US Letter or A4 paper. Page 1 is the worksheet and page 2 is the answer key, so choose “page 1” in the print dialog if you only want the practice page. Every worksheet is free for home, homeschool and classroom use, so print as many copies as you need.
Frequently asked questions
What is the difference between area and perimeter?
Perimeter is the distance around a shape (add the sides, measured in cm). Area is the space inside (length times width, measured in square cm).
How do you find the area of an L-shape?
Cut it into two rectangles, find each area and add them, or find the big rectangle's area and subtract the missing corner.
What grade learns area and perimeter?
Third grade introduces both with rectangles; fourth grade uses formulas and composite shapes.