Printable mm Ruler & Inches Ruler
Printable mm Ruler & Inches Ruler

Are you looking for online rulers in inches or mm? Our free printable rulers are perfect for classroom and at-home use! These graphic resources are designed to help students read rulers in both metric and customary systems. We’ve also included ruler activities below!
As teachers and parents, you can easily incorporate ruler-based activities into everyday learning. Have your student measure household items or compare the growth of plants in a home garden.
For the printables below, print the page at 100%. Don’t choose printer settings such as “fit to margins” or “fit to page” as it might distort the size and scale of the ruler. If the printer margins chop off the ruler corners, use the two 6-inch segments and tape them together.
Resource Details
- Age(s): 7 - 8
- Grade(s): 2nd Grade to 3rd Grade
- 10 Printable PDF Resources
- No Answer Key
Printable MM Rulers and Inches Rulers
Can’t find your ruler? Need budget-friendly rulers for an entire class? Whatever brought you here, we have what you’re looking for – FREE PRINTABLE RULERS! Look below for a 6-inch, 12-inch, and printable metric ruler. We even have a printable protractor!
Here you’ll printable 12 inch rulers. Just print them out and use!
Here you’ll find 5 colorful 6 inch rulers you can print out!
Here you’ll printable Metric rulers. Six different colors. Just print them out and use!
Reading a Ruler - Customary Units Worksheets
In this section, you’ll find ruler activities that use the customary system of measurement. We have multiple worksheets which instruct students to identify the lengths of given items. We also have a more interactive option where students cut out a printable ruler and use it to measure things on the page.
Here’s some ruler practice in customary units.
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Let’s get measuring – and the ruler is included! Students will measure the lines and write the height and width in customary units.
This basic worksheet explains how a ruler works in customary units.
Reading Metrics Rulers
In this section, you’ll find metric ruler activities. We have multiple worksheets which instruct students to identify the lengths of given items. We also have a more interactive option where students cut out a printable ruler and use it to measure things on the page.
Here’s some ruler practice with a printable metrics unit worksheet.
Get instant access to download and print all K12 Math Worksheets!
Using the printable metrics ruler, students will measure and write the height and width in metric measurements..
This basic worksheet explains how a ruler works in metric units.
A few fun ruler activities for home
Here are some fun ruler activities for home:
- Scavenger Hunt: Create a scavenger hunt at home or outside where kids need to find items of specific lengths, such as a 2-inch long object or a 10-cm tall item.
- Measure Your Room: Work together to measure the dimensions of a room, furniture, or other household items, and calculate the total area and perimeter. This can be particularly fun and educational if you’re working on a project like painting the room or making a shelf to fit on a wall.
- Nature Walk: Go for a walk outside and use rulers to measure different leaves, branches, or rocks!
- DIY Ruler Art: Encourage creativity by using rulers to draw geometric shapes, patterns, or designs, and then discuss the dimensions of each element.
- Grow a Plant: Plant seeds in a pot or garden and use rulers to track and record the growth of the plants over time, discussing the differences between cm and inches.
- Cook with Measurements: Prepare a simple recipe together that requires measuring ingredients, and use the ruler to measure lengths and widths of food items, like vegetables or pastries.
- Popsicle Stick Crafts: Provide popsicle sticks, a ruler, and glue or tape, then have the children measure, cut, and assemble the sticks into bridges or buildings!