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Temperature Conversion Worksheets

Temperature conversion worksheets help students convert numerical temperature values between Celsius and Fahrenheit. Brighterly’s printable exercises focus on applying conversion formulas correctly, solving multi-step calculations, and interpreting answers in practical temperature problems.

These worksheets assume that a temperature value is already known. Students who need practice reading thermometer scales, comparing temperatures, or identifying values below zero should start with Brighterly’s temperature worksheets.

Temperature Conversion Worksheet: Examples

Students practice conversions in both directions: Celsius to Fahrenheit and Fahrenheit to Celsius. Problems may use positive, negative, whole-number, or decimal temperatures depending on the worksheet level.

For example, to convert 20°C to Fahrenheit:

°F = (°C × 9/5) + 32

°F = (20 × 9/5) + 32

°F = 36 + 32 = 68°F

Therefore:

20°C = 68°F

Temperature Conversion Worksheets [Download for Free]

Download Brighterly’s free temperature conversion worksheets for focused practice converting between Celsius and Fahrenheit. Students can use the printable PDFs to apply formulas, solve conversion problems, and check whether their results are reasonable.

Students can review both temperature scales and the conversion relationship in Brighterly’s Celsius to Fahrenheit guide.

Students can also review how temperature fits into the broader measurement topic in Brighterly’s measurement guide. For a quick mental estimate, Brighterly’s math tricks for kids includes a simple Celsius–Fahrenheit estimation strategy.

If applying formulas and multi-step calculations remains difficult, Brighterly’s math program can provide targeted practice based on the student’s current level.

Math program

See how well temperature conversions calculate

A quick quiz can reveal which measurement skills need more practice

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How to Convert Celsius to Fahrenheit

To convert a Celsius temperature to Fahrenheit, multiply the Celsius value by 9/5 and then add 32:

°F = (°C × 9/5) + 32

For example, convert 25°C:

1. Multiply 25 by 9/5: 25 × 9/5 = 45.
2. Add 32: 45 + 32 = 77.

So:

25°C = 77°F

Students can also use Brighterly’s Celsius to Fahrenheit converter to check completed calculations.

How to Convert Fahrenheit to Celsius

To convert Fahrenheit to Celsius, subtract 32 first and then multiply the result by 5/9:

°C = (°F − 32) × 5/9

For example, convert 68°F:

1. Subtract 32: 68 − 32 = 36.
2. Multiply by 5/9: 36 × 5/9 = 20.

Therefore:

68°F = 20°C

Skills Students Practice With Temperature Conversion Worksheets

• Convert Celsius to Fahrenheit. Students substitute Celsius values into the formula, follow the correct order of operations, and express the final result in degrees Fahrenheit.
• Convert Fahrenheit to Celsius. Students reverse the process by subtracting 32 before multiplying by 5/9. This helps reinforce why the order of operations matters in conversion formulas.
• Use conversion formulas correctly. Temperature conversion requires more than memorizing two expressions. Students need to select the correct formula for the direction of conversion and substitute the given value accurately.
• Work with negative temperatures. Conversion problems can include values below zero, requiring students to keep track of negative signs while multiplying, subtracting, and adding.
• Solve temperature conversion word problems. Students may encounter Celsius and Fahrenheit in weather reports, travel, cooking, or science contexts. Word problems require them to decide which scale the answer should use before applying a formula.
• Check conversion results. Students can estimate whether an answer is reasonable by comparing it with familiar reference values. For example, 0°C equals 32°F and 100°C equals 212°F.

Celsius to Fahrenheit Worked Example

Suppose a weather report gives the temperature as 20°C, but you need the Fahrenheit value.

Use:

°F = (°C × 9/5) + 32

Substitute 20:

°F = (20 × 9/5) + 32

°F = 36 + 32

°F = 68

So 20°C = 68°F.

Fahrenheit to Celsius Worked Example

Now suppose a temperature is 86°F and needs to be converted to Celsius.

Use:

°C = (°F − 32) × 5/9

Substitute 86:

°C = (86 − 32) × 5/9

°C = 54 × 5/9

°C = 30

Therefore, 86°F = 30°C.

Common Temperature Conversion Mistakes

• Using the wrong formula. Celsius to Fahrenheit uses 9/5 and adds 32, while Fahrenheit to Celsius subtracts 32 and uses 5/9. Students should identify the direction of conversion before starting.
• Changing the order of operations. For Fahrenheit to Celsius, subtracting 32 must happen before multiplying by 5/9. Reversing these steps changes the result.
• Mixing up the temperature unit. Students should always include the correct °C or °F symbol in the final answer so it is clear which scale the converted value represents.
• Rounding too early. Some conversions produce decimals. Keeping the full value until the final step reduces rounding errors.

Temperature Conversion vs Reading a Thermometer

Temperature conversion and thermometer reading are related but different skills.

• Temperature conversion starts with a known numerical value, such as 20°C, and uses a formula to find its equivalent on another scale.
• Reading a thermometer involves examining the scale, determining the value of each interval, and identifying the temperature shown.

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Frequently Asked Questions

What Do Temperature Conversion Worksheets Practice?

Temperature conversion worksheets help students convert numerical temperatures between Celsius and Fahrenheit. They practice choosing the correct formula, substituting values, following the order of operations, working with negative or decimal temperatures, and solving real-world conversion problems.

How Do You Convert Celsius to Fahrenheit?

Multiply the Celsius temperature by 9/5 and then add 32. For example, 20°C × 9/5 = 36, and 36 + 32 = 68°F. Therefore, 20°C equals 68°F.

How Do You Convert Fahrenheit to Celsius?

Subtract 32 from the Fahrenheit temperature and then multiply the result by 5/9. For example, 68°F − 32 = 36, and 36 × 5/9 = 20°C. Therefore, 68°F equals 20°C.