Convert 9 tsp to cup

How to convert teaspoons to US cups

1. Formula: US cups = teaspoons × 0.02083333
2. Put in the value: 9 teaspoons.
3. Result: 0.1875 US cups.

Teaspoons to US cups table

Converting the other way: US cups to teaspoons

teaspoons = US cups × 48. So 0.1875 US cups is back to 9 teaspoons; one US cup is 48 teaspoons. See the US cups to teaspoons table.

Quick estimate in your head

For a rough answer, multiply by about 0.02: 9 × 0.02 ≈ 0.18 cup, against the exact 0.1875 cup (4.0% out). Good enough to check that a calculated result is sensible.

Common mistakes

The usual slip is using the factor the wrong way round. A teaspoon is smaller than a US cup, so the number of US cups must come out smaller than the number of teaspoons. If your answer goes the other way, divide instead of multiplying.

About the units

Teaspoon (tsp) and US cup (cup) are both units of volume. One teaspoon equals 0.02083333 US cups, and one US cup equals 48 teaspoons. Results on this page are rounded for display; the conversion itself uses the exact definitions.

Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.

9 teaspoons in other units

The most readable unit for this amount is US fluid ounces (1.5).

• 44.360294 ml
• 0.04436029 l
• 0.00004436 m3
• 3 tbsp
• 1.5 floz
• 0.1875 cup
• 0.09375 pt
• 0.046875 qt
• 0.01171875 gal
• 0.0097579 impgal

How this answer was calculated

The result is worked out from the numbers in this page's address when the page is opened, using exact arithmetic wherever possible and rounding only for display. Nothing is copied from a printed table. If you think an answer is wrong, please tell us through the contact page and we will check it.

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