Degree Centigrade to Degree Celsius (°C to °C) Converter

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Live Conversion • ISO 80000-5:2019 Certified

1 Degree Centigrade = 1 Degree Celsius

1 °C = 1 °C • 1 °C = 1 °C

Decimals:

Certified Authority Value

1.00000000

°C

From / Input

°C

Swap to Degree Celsius to Degree Centigrade

To / Result

°C

Quick Values:

Conversion Formula

To convert Degree Centigrade to Degree Celsius, convert to Celsius and then to Degree Celsius

°C → °C → °C

Calculation: 1 °C = 1 °C

Common Degree Centigrade to Degree Celsius Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Degree Centigrade (°C) and Degree Celsius (°C).

Tap any row to calculate

Degree Centigrade to Degree Celsius: Primary Direct Table (15 Steps)

Rule: 1 Degree Centigrade is equal to 1 °C (Degree Celsius)

Degree Centigrade to Degree Celsius Conversion Reference Table
Conversion & Equivalent Value	Scientific Notation
-40 °C -40 °C	-4 × 10¹
-20 °C -20 °C	-2 × 10¹
-10 °C -10 °C	-1 × 10¹
0 °C 0 °C	0
5 °C 5 °C	5 × 10⁰
10 °C 10 °C	1 × 10¹
15 °C 15 °C	1.5 × 10¹
20 °C 20 °C	2 × 10¹
25 °C 25 °C	2.5 × 10¹
30 °C 30 °C	3 × 10¹
37 °C 37 °C	3.7 × 10¹
50 °C 50 °C	5 × 10¹
100 °C 100 °C	1 × 10²
200 °C 200 °C	2 × 10²
500 °C 500 °C	5 × 10²

Degree Celsius to Degree Centigrade: Reciprocal Summary

Rule: 1 Degree Celsius is equal to 1 °C (Degree Centigrade)

Degree Celsius to Degree Centigrade Conversion Reference Table
Reciprocal & Equivalent Value	Scientific Notation
0 °C 0 °C	0
20 °C 20 °C	2 × 10¹
37 °C 37 °C	3.7 × 10¹
100 °C 100 °C	1 × 10²
500 °C 500 °C	5 × 10²

View Complete 15-Row Degree Celsius to Degree Centigrade Table

Real-World Context & Everyday Benchmarks

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To help contextualize these units in everyday life, science, and engineering, here are verified real-world reference points for Degree Centigrade (°C) and Degree Celsius (°C):

Degree Centigrade References:

Water freezing to boiling span on traditional centigrade scale 100 °C

Degree Celsius References:

Daily ambient outdoor air temperature diurnal temperature swing 10 °C
Clinical low-grade fever elevation above baseline body temperature 1.5 °C
Pure water freezing to boiling thermodynamic temperature interval 100 °C

Tap any benchmark above to automatically calculate its exact equivalent in Degree Celsius.

ISQ Dimension: [Θ] Coherent SI Unit: kelvin (K) Thermodynamics & Heat Transfer

How to Convert Degree Centigrade to Degree Celsius

Converting Degree Centigrade (°C) to Degree Celsius (°C) is a core calculation in Temperature Interval, which measures the differential magnitude of temperature change or thermal gradient regardless of origin baseline. Converting between these temperature scales requires calibrating both the incremental degree size and the thermodynamic reference baseline.

Direct Factor1 °C = 1 °C

Inverse Ratio1 °C = 1 °C

Conversion ScaleNon-Linear Affine Offset & Interval Scale

First-Principles SI Derivation ProofNIST SP 811 / ISO 80000 Compliance

Mathematical Conversion Derivation via Coherent SI Base Unit

Under the International System of Quantities (ISQ), dimensional conversion between non-SI units is rigorously resolved by bridging through the coherent SI base unit (kelvin (K)) without arbitrary rounding:

V_{\text{target}} = V_{\text{source}} \times \left( \frac{k_{\text{source} \to \text{SI}}}{k_{\text{target} \to \text{SI}}} \right)

Universal Dimensional Conversion Law (ISO 80000 / NIST SP 811)

1. Source SI Bridge (k_source):1 °C = 1 kelvin (K)

2. Target SI Bridge (k_target):1 °C = 1 kelvin (K)

Step-by-step substitution for Degree Centigrade → Degree Celsius:V(°C) = V(°C) × ( 1 / 1 ) = V(°C) × 1

Mathematical FormulaValue in Degree Celsius = Value in Degree Centigrade × 1Direct computational formula applied for standard conversion.

Worked Example

For an engineering input of 15 °C, applying the conversion factor yields exactly 15 °C. At larger operational scale, 1000 Degree Centigrade corresponds to 1000 °C.

Inverse check: 1 °C = 1 °C.

Understanding Degree Centigrade and Degree Celsius

Domain Metrology & Engineering Applications

Governing Law & Equation

Thermodynamic Temperature Gradient (ΔT = T₂ - T₁)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using differential thermocouple thermopiles, dual-channel RTD bridge monitors, and infrared thermal imaging cameras.

Primary Industry Sectors

Applied across heat exchanger thermal efficiency rating, building insulation certification, electronic cooling design, and climate testing under international metrology standard ISO 80000-5:2019.

Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-5:2019 and the BIPM SI Brochure (9th Edition). Governed by Thermodynamic Temperature Gradient (ΔT = T₂ - T₁) under ISO 80000 dimensional vector [Θ].

Multi-Variable Engineering Bridge Thermal Expansion & Dilatation

Temperature Interval to Elongation Bridge (Meters • Millimeters • Centimeters • Inches • Feet)

Calculate linear expansion ΔL = α × L₀ × ΔT across architectural alloys and piping materials on a 10-meter structural member, bridging temperature interval [Θ] with physical elongation [L].

Input Temperature Differential (ΔT): °C

Select Material Expansion Coefficient: 1.2 × 10⁻⁵ 1/K

Governing Law: ΔL = α × L₀ × ΔT

Vector: [K] × [1/K] × [10m] → [m]

Live Calculated Bridge Equivalent:

1 °C at Structural Carbon Steel (ASTM A36) = 0.00012 m

Equals 1.2 × 10⁻⁷ km • 0.012 cm • 0.12 mm

SI Length

0.00012

Meters

Geographic Scale

1.2 × 10⁻⁷

Kilometers

Engineering Scale

0.012

Centimeters

Precision Machining

0.12

Millimeters

US Architectural

0.0003937

Feet

US Tooling

0.004724

Inches

Step-by-Step Numerical Derivation Proof View Derivation

1. Normalize Input to SI Base Unit (K):
ΔT = 1 °C × 1 = 1 K
2. Apply Engineering Parameter (α):
Selected condition: Structural Carbon Steel (ASTM A36) at α = 1.2 × 10⁻⁵ 1/K
3. Execute Governing Physical Law in SI Units:
ΔL = α × L₀ × ΔT = (10 m) × (1.2 × 10⁻⁵ 1/K) × (1 K) = 0.00012 m
4. Convert to Standard Engineering Units:
• m: 0.00012 × 1 = 0.00012 m (Meters) • km: 0.00012 × 0.001 = 1.2 × 10⁻⁷ km (Kilometers) • cm: 0.00012 × 100 = 0.012 cm (Centimeters) • mm: 0.00012 × 1000 = 0.12 mm (Millimeters) • ft: 0.00012 × 3.2808 = 0.0003937 ft (Feet) • in: 0.00012 × 39.3701 = 0.004724 in (Inches)

Explore Full Thermal Expansion Converter →

Engineering Substance / Operating Standard	Parameter Value (1/K)	Reference State / Condition	Typical Industrial & Engineering Application
Structural Carbon Steel (ASTM A36)	`1.2 × 10⁻⁵`	α = 12.0 × 10⁻⁶ / K	Standard structural building steel
Structural Aluminum (6061-T6)	`2.31 × 10⁻⁵`	α = 23.1 × 10⁻⁶ / K	Extruded curtain walls & framing
Pure Copper (C11000)	`1.65 × 10⁻⁵`	α = 16.5 × 10⁻⁶ / K	Plumbing lines & busbars
Reinforced Concrete (Normal Weight)	`1.2 × 10⁻⁵`	α = 12.0 × 10⁻⁶ / K	Civil engineering concrete
Invar 36 (Ultra-Low Expansion Alloy)	`1.2 × 10⁻⁶`	α = 1.2 × 10⁻⁶ / K	Precision optical measurement benches

Frequently Asked Questions

The mathematical formula to convert degree centigrades to degree celsius is: [value] * 1 = degree celsius. Rather than doing the math manually, you can use our high-precision online calculator to process this exact equation instantly without rounding errors.

To perform the reverse calculation from degree celsius back to degree centigrades, you must divide your starting value by 1. Our bidirectional tool automatically computes this inverse equation the moment you type into the degree celsius input field.

A temperature of 1 Degree Centigrade corresponds to 1 Degree Celsius. In terms of incremental temperature steps, a 1-degree change in Degree Centigrade equals a 1-degree change in Degree Celsius.

Under standard international measurement guidelines, 1 Degree Centigrade converts to 1 degree celsius. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.

There is exactly 1 Degree Celsius in 1 Degree Centigrade (1 °C = 1 °C). Centigrade is the historical precursor name for the modern Celsius scale adopted by the CIPM in 1948.

The conversion formula between Degree Centigrade (V(°C, centigrade)) and Degree Celsius (V(°C, celsius)) is an absolute identity: V(°C, celsius) = V(°C, centigrade) × 1.

To convert Degree Celsius back to Degree Centigrade, multiply by 1: V(°C, centigrade) = V(°C, celsius) × 1.

The 9th General Conference on Weights and Measures (CGPM) officially replaced 'centigrade' with 'celsius' in 1948 to eliminate confusion with French angular measurement units (centigrade = hundredth of a grade).