Celsius and Fahrenheit Conversions Made Simple

Grade Levels: 3 - 8


  • Students will learn to convert Celsius to Fahrenheit (or vice versa).
  • Students will practice their addition, subtraction, and multiplication skills.


  • Pens, paper
  • Calculator (optional)


Converting Fahrenheit to Celsius:
  1. Ask students to think of a temperature in Fahrenheit.
  2. Have them add 40 to that number.
    • Multiply the new number by .55555 (a decimal point followed by five 5s).

    • Subtract 40.

See example below:

32° Fahrenheit = ?° Celsius
Step #1: 32°F + 40 = 72.
Step #2: 72 x .55555 = 39.9996 (round to nearest whole number).
Step #3: 40 - 40 = 0°C.

Converting Fahrenheit to Celsius:

  1. Ask students to think of a temperature in Celsius.

  2. Have them add 40 to that number.

  3. Multiply the new number by 1.8.

  4. Subtract 40.

See example below:

0° Celsius = ?° Fahrenheit
Step #1: 0°C + 40 = 40.
Step #2: 40 x 1.8 = 72.
Step #3: 72 - 40 = 32°F.

If you need to teach it, we have it covered.

Start your free trial to gain instant access to thousands of teacher-approved worksheets, activities, and over 22,000 resources created by educational publishers and teachers.

Start Your Free Trial

Follow us on:

Follow TeacherVision on Facebook
Follow TeacherVision on Google Plus


Earth Day
Kids love hearing about the Earth and ways we can be better to our environment! We've gathered some great resources to help you celebrate Earth Day (April 22) with your class. Some of our most popular activities include this Pollution Matching Worksheet, Recycling Videos and Activities, and Renewable and Non-renewable Energy Worksheet, Recycled Art Lesson Plan, and a Trash & Climate Change Activities Packet!

Interested in using different types of media in your classroom? We have a growing collection of videos, with related activities, for holidays and events, including: slavery & the Civil War, American History, U.S. Presidents, handwashing awareness, the Common Core, women's history, Memorial Day, the American Revolution, and the environment. Enjoy!

April Calendar of Events
April is full of events that you can incorporate into your standard curriculum. Our Educators' Calendar outlines activities for each event, including: Encourage a Young Writer Day (4/10), Library Week (4/10-16), Passover Begins (4/22), Earth Day (4/22), Tell a Story Day (4/27), and International Dance Day (4/20). Plus, celebrate Math Education Month, Poetry Month, Garden Month, School Library Month all April long!

Coding & Computer Science
Introduce your students to basic coding and computer science! Our Top 5 Free Coding Tools for Kids, Top 5 Free Coding Tools for Teens, and Hour of Code resources make a great introduction to the computer science skills all students will benefit from.