Per Fahrenheit to ppm per °C Converter
Quick answer: To convert Per Fahrenheit to ppm per °C, multiply by 1,800,000. For example, 10 1/°F is 18,000,000 ppm/°C. One per degree fahrenheit equals 1,800,000 ppm/°C.
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Use the Per Fahrenheit to ppm per °C Converter
Per Fahrenheit to ppm per °C formula and what each symbol means
ppm/°C = 1/°F × 1,800,000
| Symbol | Meaning |
|---|---|
| 1/°F | Per degree Fahrenheit |
| ppm/°C | Parts per million per °C |
Per Fahrenheit to ppm per °C examples
1 1/°F
1 1/°F × 1,800,000 = 1,800,000 ppm/°C.
10 1/°F
10 1/°F × 1,800,000 = 18,000,000 ppm/°C.
100 1/°F
100 1/°F × 1,800,000 = 180,000,000 ppm/°C.
Per Fahrenheit compared with ppm per °C
One 1/°F is 1,800,000 times as large as one ppm/°C, so your number gets bigger when you convert Per Fahrenheit to ppm per °C and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About Per Fahrenheit and ppm per °C
Per degree Fahrenheit (1/°F): Per Fahrenheit degree; as a unit it equals 1.8 per kelvin, so a material’s per-°F value is 5/9 of its per-kelvin value. Parts per million per °C (ppm/°C): Parts per million per Celsius degree, 1×10⁻⁶ per kelvin.
How to calculate Per Fahrenheit to ppm per °C step by step
- Enter the value in 1/°F (the starting unit).
- Multiply by 1,800,000, because 1 1/°F = 1,800,000 ppm/°C.
- The product is the value in ppm/°C. To go back, divide by 1,800,000 or multiply by 5.555556×10⁻⁷.
Popular thermal expansion conversions
How to read your Per Fahrenheit to ppm per °C result
Quick estimate: multiply by about 1,800,000 to get ppm per °C from Per Fahrenheit; this is within 0.1% of the exact factor. A per-kelvin value equals the per-Celsius value, while a per-Fahrenheit value is 5/9 as large.
| PER FAHRENHEIT | PPM PER °C |
|---|---|
| 1 | 1,800,000 |
| 2 | 3,600,000 |
| 5 | 9,000,000 |
| 10 | 18,000,000 |
| 20 | 36,000,000 |
| 50 | 90,000,000 |
| 100 | 180,000,000 |
| 1,000 | 1,800,000,000 |
ppm per °C to Per Fahrenheit: quick table
| PPM PER °C | PER FAHRENHEIT |
|---|---|
| 1 | 5.555556×10⁻⁷ |
| 5 | 0.000002777778 |
| 10 | 0.000005555556 |
| 25 | 0.00001388889 |
| 50 | 0.00002777778 |
| 100 | 0.00005555556 |
| 250 | 0.0001388889 |
| 500 | 0.0002777778 |
Common mistakes when calculating Per Fahrenheit to ppm per °C
- Mixing per-°C and per-°F values for the same material: the per-°F number is 5/9 of the per-°C number.
- Dividing when you should multiply: from 1/°F to ppm/°C multiply by 1,800,000; from ppm/°C to 1/°F divide by 1,800,000.
Per Fahrenheit to ppm per °C FAQ
How many ppm/°C are in 1 1/°F?
1 1/°F equals 1,800,000 ppm/°C.
How many 1/°F are in 1 ppm/°C?
1 ppm/°C equals 5.555556×10⁻⁷ 1/°F.
Is 1 1/°F = 1,800,000 ppm/°C an exact conversion?
The factor is shown rounded to 7 significant figures (1,800,000). The calculator above uses more digits.
What is a per degree Fahrenheit (1/°F)?
Per Fahrenheit degree; as a unit it equals 1.8 per kelvin, so a material’s per-°F value is 5/9 of its per-kelvin value.
How can I estimate Per Fahrenheit to ppm per °C in my head?
Quick estimate: multiply by about 1,800,000 to get ppm per °C from Per Fahrenheit; this is within 0.1% of the exact factor.
What is 40 1/°F in ppm per °C?
40 1/°F = 72,000,000 ppm/°C (since 40 × 1,800,000).
What is 200 1/°F in ppm per °C?
200 1/°F = 360,000,000 ppm/°C (since 200 × 1,800,000).
What is 3 1/°F in ppm per °C?
3 1/°F = 5,400,000 ppm/°C (since 3 × 1,800,000).
How many decimals should I keep when converting 1/°F to ppm/°C?
Match the precision of your original measurement. For example, 18,000,000 ppm/°C rounds to 18,000,000 ppm/°C at 3 significant figures; keep more digits only for engineering or scientific work.
More in Thermal Expansion converters
- ppm per °F to ppm per °C Converter
- Per Kelvin to ppm per °F Converter
- ppm per °F to Per Kelvin Converter
- ppm per °F to Per Fahrenheit Converter
- ppm per °C to Per Kelvin Converter
- ppm per °C to ppm per °F Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)