Turns per Meter to Turns per Centimeter (TPM to TPcm)
1 turn per metre (TPM) = 0.01 turns per centimetre (TPcm). 1 TPcm = 100 TPM. Example: 15 TPM = 15 × 0.01 = 0.15 TPcm.
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1 TPM = 0.01 TPcm
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk turn per metre to turn per centimetre converter to paste a column from Excel.
How to Convert Turn per Meter to Turn per Centimeter
- 1 TPM = 0.01 TPcm
- 1 TPcm = 100 TPM
- Example: convert 15 TPM to TPcm: 15 TPM = 15 × 0.01 TPcm = 0.15 TPcm
Formula
TPcm = TPM ÷ 100
Derivation from SI units:
- The SI-based unit of twist: complete turns of the yarn about its axis per metre of length.
- 1 turn per cm = 100 turns per metre
Both units are defined exactly, so the factor is exact. Turn per Meter definition: turn per metre; Turn per Centimeter definition: turn per centimetre.
Worked examples
- A reading of 400 TPM converts to 4 TPcm.
400 TPM × 0.01 = 4 TPcm - A value of 700 TPM is 7 TPcm.
700 TPM × 0.01 = 7 TPcm
Turn per Meter to Turn per Centimeter conversion table
| Turns per Meter (TPM) | Turns per Centimeter (TPcm) |
|---|---|
| 100 TPM | 1 TPcm |
| 200 TPM | 2 TPcm |
| 300 TPM | 3 TPcm |
| 400 TPM | 4 TPcm |
| 500 TPM | 5 TPcm |
| 600 TPM | 6 TPcm |
| 700 TPM | 7 TPcm |
| 800 TPM | 8 TPcm |
| 1000 TPM | 10 TPcm |
| 1200 TPM | 12 TPcm |
Where it's used
Turns per Meter are used for spinning and twisting specifications in metric mills, while turns per centimetre appear in filament and ply twist. Both measure yarn twist (turns per unit length), so the conversion is a fixed factor.
Turn per Meter to other yarn twist units
| Conversion | 1 TPM equals |
|---|---|
| turn per metre to turn per centimetre | 0.01 TPcm |
| turn per metre to turn per inch | 0.0254 TPI |
| turn per metre to turn per foot | 0.3048 TPF |
Frequently asked questions
How many turns per centimetre are in 1 turn per metre?
1 TPM = 0.01 TPcm.
How do I convert turns per metre to turns per centimetre?
Multiply the value in TPM by 0.01, or divide it by 100. For example, 15 TPM × 0.01 = 0.15 TPcm.
Is the TPM to TPcm conversion exact?
Yes. Both units are defined exactly, and 1 TPM is exactly 0.01 TPcm.
Sources
- ISO 1144, Textiles — Universal system for designating linear density (Tex System), International Organization for Standardization , Metric designation of yarn twist.
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Turns per Meter to Turns per Centimeter (TPM to TPcm). Retrieved October 25, 2026, from https://scientificconverters.com/yarn-twist/turns-per-meter-to-turns-per-centimeter/
IEEE
Scientific Converters, "Turns per Meter to Turns per Centimeter (TPM to TPcm)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/yarn-twist/turns-per-meter-to-turns-per-centimeter/