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Centigrade to Celsius Converter

Show the one-to-one mapping between centigrade and Celsius, plus related Fahrenheit and Kelvin values.

Formula shown0 inputs definedUpdated Nov 2025By CalcuTotal TeamFree, no sign-up

Quick Summary

Use this when you need:

Reassure learners that centigrade on legacy charts equals Celsius
Convert older engineering documents labeled in centigrade to modern Celsius
Cross-check °C readings against °F or K where both appear

You’ll get:Temperature

How this is calculated

Formula:

°C (centigrade) = °C

In plain language:

Centigrade is an older name for the Celsius scale. Both share the same zero point and degree size; Fahrenheit and Kelvin values are derived with the usual affine formulas.

The formula is always visible so you can verify the math and explain your numbers to anyone who asks.

What these terms mean

Temperature

Temperature used in the calculation.

When to use this calculator

Reassure learners that centigrade on legacy charts equals Celsius
Convert older engineering documents labeled in centigrade to modern Celsius
Cross-check °C readings against °F or K where both appear

Last updated: November 22, 2025

Centigrade to Celsius converter explained

Centigrade and Celsius describe the identical temperature scale. This converter simply echoes that identity while showing the matching Fahrenheit and Kelvin values so legacy documents and modern readouts stay aligned.

How the conversion works

Centigrade → Celsius is a one-to-one rename:

\text{°C} = \text{°C (centigrade)}

Related scales follow the usual affine rules:

\text{°F} = \text{°C} \times \tfrac{9}{5} + 32

K = \text{°C} + 273.15

Units and conversions

Scale	Symbol	Relation
Centigrade	°C (centigrade)	same as Celsius
Celsius	°C	base here
Fahrenheit	°F	°F = °C × 9/5 + 32
Kelvin	K	K = °C + 273.15

Worked examples

Legacy chart entry A report lists 30 °C (centigrade):
$\text{°F} = 30 \times \tfrac{9}{5} + 32 = 86\,\text{°F}$ $K = 30 + 273.15 = 303.15\,\text{K}$
Result: 30 °C, 86 °F, 303.15 K.
Kelvin back to centigrade Sensor outputs 290 K:
$\text{°C} = 290 - 273.15 = 16.85\,\text{°C}$ $\text{°F} = 16.85 \times \tfrac{9}{5} + 32 \approx 62.33\,\text{°F}$
Result: 16.85 °C (centigrade), 62.33 °F.

Tips and pitfalls

If you see “centigrade” on older lab gear, read it as Celsius; no conversion needed.
Kelvin is the safest scale for temperature differences; 1 K change equals 1 °C change.
Keep two decimals for scientific work; whole numbers suffice for weather.

References and further reading

Frequently Asked Questions

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Calculator info

Version:: v1.0.0
Last reviewed:: Nov 22, 2025
Sensitivity:: low
References:: 1

Last updated: November 22, 2025

Centigrade to Celsius converter explained

How the conversion works

Centigrade → Celsius is a one-to-one rename:

\text{°C} = \text{°C (centigrade)}

Related scales follow the usual affine rules:

\text{°F} = \text{°C} \times \tfrac{9}{5} + 32

K = \text{°C} + 273.15

Units and conversions

Scale	Symbol	Relation
Centigrade	°C (centigrade)	same as Celsius
Celsius	°C	base here
Fahrenheit	°F	°F = °C × 9/5 + 32
Kelvin	K	K = °C + 273.15

Worked examples

Legacy chart entry A report lists 30 °C (centigrade):
$\text{°F} = 30 \times \tfrac{9}{5} + 32 = 86\,\text{°F}$ $K = 30 + 273.15 = 303.15\,\text{K}$
Result: 30 °C, 86 °F, 303.15 K.
Kelvin back to centigrade Sensor outputs 290 K:
$\text{°C} = 290 - 273.15 = 16.85\,\text{°C}$ $\text{°F} = 16.85 \times \tfrac{9}{5} + 32 \approx 62.33\,\text{°F}$
Result: 16.85 °C (centigrade), 62.33 °F.

Tips and pitfalls

If you see “centigrade” on older lab gear, read it as Celsius; no conversion needed.
Kelvin is the safest scale for temperature differences; 1 K change equals 1 °C change.
Keep two decimals for scientific work; whole numbers suffice for weather.

Quick Summary

Calculator Tool

How this is calculated

What these terms mean

Temperature

When to use this calculator

Centigrade to Celsius converter explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

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Calculator info

Centigrade to Celsius converter explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

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