Convert Celsius to Newton
Convert degrees celsius to degrees newton instantly. 1 °C = 0.33 °N — use the live calculator, the exact formula, a reference-temperature table and worked examples. Also check the Newton to Celsius converter for the reverse conversion.
Units explained
Celsius
The degree Celsius (°C) is the SI's everyday temperature unit. One degree Celsius is exactly the same size as one kelvin, with the zero point shifted so that 0 °C = 273.15 K. Water freezes near 0 °C and boils near 100 °C at standard atmospheric pressure.
Named for Swedish astronomer Anders Celsius, who in 1742 proposed a 100-degree scale between the boiling and freezing points of water. His original scale ran in reverse (0 at boiling, 100 at freezing); it was inverted to the modern direction shortly after his death.
The world's standard everyday temperature scale, used in nearly every country — including throughout India — for weather forecasts, cooking, medicine, science classrooms, and industry.
Devised by Anders Celsius at Uppsala University, Sweden, in 1742; the inverted modern form was in use by 1745, and the name 'degree Celsius' replaced 'degree centigrade' internationally at the 9th CGPM in 1948.
Newton
The degree Newton (°N) sets the freezing point of water at 0 °N and the boiling point at 33 °N, making one degree Newton equal to exactly 100/33 kelvins (about 3.03 K) — the largest degree of any classic scale.
Devised by Isaac Newton using linseed-oil thermometers and a ladder of everyday reference points such as melting snow and the heat of the human body, published anonymously around 1701.
Never adopted for practical measurement, but historically important: Newton's idea of anchoring a scale to two reproducible fixed points directly influenced Celsius's centigrade approach four decades later.
Published by Isaac Newton in the Philosophical Transactions of the Royal Society in London, around 1701.
Celsius to Newton conversion formula
The exact relationship between degrees celsius and degrees newton:
To convert degrees celsius to degrees newton, multiply the value in degrees celsius by 33/100. To reverse, multiply the value in degrees newton by 100/33.
Both units count upward from absolute zero, so 0 °C = 0 °N and the relationship is a pure ratio.
How to use this converter
Type a value into the calculator. The result in degrees newton updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Newton to Celsius converter for the reverse direction.
Step-by-step: convert degrees celsius to degrees newton
- Write down the temperature in degrees celsius (°C).
- Multiply the value in degrees celsius by 33/100.
- The result is the same temperature expressed in degrees newton (°N).
- To reverse, multiply the value in degrees newton by 100/33 — or open the Newton to Celsius converter.
Worked examples
Example 1 — Convert 37 °C to °N (human body temperature):
37 × 33/100 = 12.21 °N
Example 2 — Convert 100 °C to °N (the boiling point of water):
100 × 33/100 = 33 °N
Celsius to Newton conversion table
Physically meaningful reference temperatures, from absolute zero to the surface of the Sun, converted from degrees celsius to degrees newton:
| Celsius [°C] | Newton [°N] | Reference point |
|---|---|---|
| -273.15 | -90.1395 | Absolute zero |
| -40 | -13.2 | Where Celsius and Fahrenheit coincide (−40°) |
| -17.7777777778 | -5.8666666667 | Zero Fahrenheit (0 °F) |
| 0 | 0 | Water freezes (0 °C / 32 °F) |
| 0.01 | 0.0033 | Triple point of water |
| 10 | 3.3 | Cool day (10 °C / 50 °F) |
| 20 | 6.6 | Room temperature (20 °C / 68 °F) |
| 25 | 8.25 | Standard laboratory temperature (25 °C) |
| 30 | 9.9 | Hot day (30 °C / 86 °F) |
| 37 | 12.21 | Human body temperature (37 °C / 98.6 °F) |
| 40 | 13.2 | Heat-wave day (40 °C / 104 °F) |
| 50 | 16.5 | Hot tap water (50 °C / 122 °F) |
| 100 | 33 | Water boils (100 °C / 212 °F) |
| 180 | 59.4 | Moderate baking oven (180 °C / 356 °F) |
| 5504.85 | 1816.6005 | Surface of the Sun (≈5,505 °C) |
Frequently asked questions
How many degrees newton is 1 degree celsius?
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Sources & references
Conversion relationship (1 °C = 0.33 °N) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- BIPM — International Temperature Scale of 1990 (ITS-90)
The internationally agreed practical temperature scale, defining fixed points (including the triple point of water at 273.16 K) and interpolation instruments used by national metrology institutes for thermometer calibration worldwide.
- CODATA Internationally Recommended Values of the Fundamental Physical Constants
Committee on Data of the International Science Council; authoritative source for the masses of fundamental particles (electron, proton, neutron) and the atomic mass constant.