--- title: "100 mL to tsp = 20.28841 tsp" description: "100 milliliters is 20.28841 teaspoons. The arithmetic, a table of nearby values, and a converter for any other number." url: https://atoneplace.net/convert/100-ml-to-teaspoons/ site: "At One Place" --- # 100 mL to tsp **100 milliliters in teaspoons: 100 mL = 20.28841 tsp** tsp = mL × 0.2028841362 100 milliliters is 20.28841 teaspoons. To get there, multiply by 0.2028841362. ## Values either side *Milliliters near 100, converted to teaspoons.* | Milliliters | Teaspoons | | --- | --- | | 80 mL | 16.23073 | | 85 mL | 17.24515 | | 90 mL | 18.25957 | | 95 mL | 19.27399 | | 100 mL ← | 20.28841 | | 110 mL | 22.31725 | | 120 mL | 24.3461 | | 125 mL | 25.36052 | | 150 mL | 30.43262 | ## How the conversion works The relationship is tsp = mL × 0.2028841362. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two. ## Common questions ### What is 100 mL in teaspoons? 100 mL is 20.28841 tsp. ### How do you convert milliliters to teaspoons? Multiply by 0.2028841362. ## Related pages - [Milliliters to teaspoons](https://atoneplace.net/convert/ml-to-teaspoons/) - [100 tsp to mL](https://atoneplace.net/convert/100-teaspoons-to-ml/) - [80 mL to tsp](https://atoneplace.net/convert/80-ml-to-teaspoons/) - [85 mL to tsp](https://atoneplace.net/convert/85-ml-to-teaspoons/) - [90 mL to tsp](https://atoneplace.net/convert/90-ml-to-teaspoons/) - [95 mL to tsp](https://atoneplace.net/convert/95-ml-to-teaspoons/) - [110 mL to tsp](https://atoneplace.net/convert/110-ml-to-teaspoons/) - [120 mL to tsp](https://atoneplace.net/convert/120-ml-to-teaspoons/) - [125 mL to tsp](https://atoneplace.net/convert/125-ml-to-teaspoons/) - [150 mL to tsp](https://atoneplace.net/convert/150-ml-to-teaspoons/) ## Sources - Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)] - The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure) - Calculated on this page — At One Place (/about/)