Does the worksheet include an answer key?

Yes. Each worksheet comes with a matching answer key, and the student page grades every answer automatically.

Can I choose the size of the numbers?

Yes. You set the range for length and width, so the problems can stay simple for early grades or grow larger for practice.

What grade is area of a rectangle for?

It usually appears in grades 3 to 6, and it is often the first area formula students meet.

Yes. The tool is free, runs in your browser, and needs no account. Print or save each worksheet as a PDF.

Formula Worksheet Maker

Area of a Rectangle Worksheet Generator

Build a printable area-of-a-rectangle worksheet with an answer key. Pick the range of lengths and widths, generate a fresh set of problems, and let the student page check the answers.

Make a rectangle-area worksheet → Free · runs in your browser · answer key included

The formula

A = length × width

To find the area of a rectangle, multiply its length by its width. The answer is in square units. This is usually the first area formula a student learns, and it sets the pattern for the ones that follow: area is always about covering a surface, measured in squares.

A worked example

A rectangle is 8 m long and 5 m wide. Find its area.

Multiply length by width: 8 × 5 = 40.

Area = 40 m²

The most common mix-up is between area and perimeter. Perimeter is the distance around the edge (add the sides); area is the surface inside (multiply length by width). The other thing to watch is the unit: area is always in square units, so 40 becomes 40 m², not 40 m.

Sample problems

A rug is 6 m long and 4 m wide. Find its area. (24 m²)
A book cover is 24 cm by 18 cm. Find its area. (432 cm²)
A football field is 30 m by 20 m. Find its area. (600 m²)
A phone screen is 15 cm by 7 cm. Find its area. (105 cm²)

In the tool you set the range the lengths and widths are drawn from, so each worksheet comes out different.

Who it's for

Area of a rectangle is an elementary-school staple, usually grades 3 to 6. It works for first lessons on area, homework practice, and homeschool review, and it pairs well with a perimeter lesson so students can feel the difference between the two.

How to make one

Open Formula Worksheet Maker.
Drag the Area of a Rectangle formula onto the sheet.
Set the range for length and width.
Generate the student page, the questions PDF, and the answer key.
Print it, or save as a PDF and reuse it. Regenerate for a new set anytime.

Questions people ask

Does the worksheet include an answer key?: Yes. Each sheet comes with a matching key, and the student page grades every answer as it goes.
Can I keep the numbers small for younger students?: Yes. You set the range for length and width, so the problems can stay easy or grow harder.
Can I use both metric and plain numbers?: The problems are number-based, so you can present the answers in whatever unit your class is using.
Is it free?: Yes. The tool is free, runs in your browser, and needs no account. Print or save each worksheet as a PDF.

Ready to make your worksheet?

Set your length and width ranges and generate an area-of-a-rectangle worksheet with its answer key.

Open Formula Worksheet Maker →