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Teaspoons to US fluid ounces

1 teaspoon in US fluid ounces
1 tsp = 0.16667 fl oz
fl oz = tsp × 1/6

To convert teaspoons to US fluid ounces, multiply by 0.1666666667. The table below gives the values people look up most often, and the converter works for any number.

Teaspoons to US fluid ounces table

Common teaspoon values converted to US fluid ounces.
Teaspoons US fluid ounces
1 tsp 0.16667
2 tsp 0.33333
3 tsp 0.5
4 tsp 0.66667
5 tsp 0.83333
10 tsp 1.666667
15 tsp 2.5
20 tsp 3.333333
25 tsp 4.166667
30 tsp 5
40 tsp 6.666667
50 tsp 8.333333
75 tsp 12.5
100 tsp 16.66667
250 tsp 41.66667
500 tsp 83.33333
1,000 tsp 166.6667

How the conversion works

The relationship is fl oz = tsp × 1/6. 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

How many US fluid ounces are in one teaspoon?
One teaspoon equals 0.16667 US fluid ounces. fl oz = tsp × 1/6.
How do you convert teaspoons to US fluid ounces?
Use fl oz = tsp × 1/6. So 10 tsp is 1.666667 fl oz.
How many teaspoons are in one US fluid ounce?
One US fluid ounce equals 6 teaspoons, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked