US Teaspoons to US Fluid Ounces Converter
Convert US teaspoons to US fluid ounces instantly with this free US teaspoons to US fluid ounces converter. Enter any value to get an accurate volume conversion, plus the formula, the conversion factor and a full reference table.
What is 1 US teaspoon in US fluid ounces?
1 US teaspoon is equal to 0.166666667 US fluid ounces.
1 ÷ 6 = 0.166666667 US fluid ounces
1 US teaspoon = 0.1666666667 US fluid ounces
US teaspoons to US fluid ounces formula
fl oz = tsp ÷ 6
The US teaspoons to US fluid ounces conversion factor is 0.166666666667, which is exact by definition. 1 US teaspoon = 0.166666666667 US fluid ounces, and 1 US fluid ounce = 6 US teaspoons.
Regional note. A US fluid ounce is 29.5735 mL; an Imperial fluid ounce is 28.4131 mL. This page uses the US fluid ounce.
Worked examples
- 2 US teaspoons = 0.333333333 US fluid ounces — 2 ÷ 6 = 0.333333333 US fluid ounces
- 6 US teaspoons = 1 US fluid ounces — 6 ÷ 6 = 1 US fluid ounce
- 10 US teaspoons = 1.66666667 US fluid ounces — 10 ÷ 6 = 1.66666667 US fluid ounces
US teaspoons to US fluid ounces conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| US teaspoons (tsp) | US fluid ounces (fl oz) |
|---|---|
| 1 tsp | 0.16666667 fl oz |
| 2 tsp | 0.33333333 fl oz |
| 3 tsp | 0.5 fl oz |
| 4 tsp | 0.66666667 fl oz |
| 5 tsp | 0.83333333 fl oz |
| 6 tsp | 1 fl oz |
| 7 tsp | 1.1666667 fl oz |
| 8 tsp | 1.3333333 fl oz |
| 9 tsp | 1.5 fl oz |
| 10 tsp | 1.6666667 fl oz |
| 12 tsp | 2 fl oz |
| 15 tsp | 2.5 fl oz |
| 20 tsp | 3.3333333 fl oz |
| 25 tsp | 4.1666667 fl oz |
| 30 tsp | 5 fl oz |
| 50 tsp | 8.3333333 fl oz |
| 75 tsp | 12.5 fl oz |
| 100 tsp | 16.666667 fl oz |
| 500 tsp | 83.333333 fl oz |
| 1,000 tsp | 166.66667 fl oz |
When you need to convert US teaspoons to US fluid ounces
- Scaling recipes between metric millilitres and US cups, pints or fluid ounces.
- Comparing fuel prices and tank capacities between countries.
- Working out paint, fertiliser or pool chemical quantities from instructions written for another market.
Common mistakes to avoid
- Dividing when you should multiply. Because 1 US teaspoon = 0.166667 US fluid ounces, the answer should be smaller than the number you started with.
- Confusing the fluid ounce (a volume) with the ounce (a weight). They are different quantities and only coincide for water by rough approximation.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
Cooking tolerates rounding to the nearest 5 mL or quarter cup. Dosing, chemistry and pool treatment do not — keep the full converted value there.
How these units are defined
- US teaspoon (tsp): One third of a US tablespoon, about 4.93 mL. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- US fluid ounce (fl oz): 1/128 of a US gallon, about 29.57 mL. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Related conversions
- US fluid ounces to US teaspoons
- US teaspoons to Milliliters
- US teaspoons to Liters
- US teaspoons to Cubic meters
- US teaspoons to Cubic feet
- US teaspoons to US tablespoons
- US teaspoons to US cups
- US teaspoons to US liquid pints
- US teaspoons to US liquid quarts
- US teaspoons to US liquid gallons
- US teaspoons to Imperial pints
- US teaspoons to Imperial gallons
Frequently asked questions
- What is 1 US teaspoon in US fluid ounces?
- 1 US teaspoon is equal to 0.166666667 US fluid ounces.
- How many US teaspoons are in one US fluid ounce?
- There are 6 US teaspoons in 1 US fluid ounce.
- How do you convert US teaspoons to US fluid ounces?
- Multiply the number of US teaspoons by 0.166666667 — or use the formula fl oz = tsp ÷ 6.
- What is 6 US teaspoons in US fluid ounces?
- 6 US teaspoons is 1 US fluid ounces. 6 ÷ 6 = 1 US fluid ounce.
- Is the US teaspoons to US fluid ounces conversion exact?
- Yes. The relationship is fixed by definition, so 0.166666666667 is an exact conversion factor — only the displayed result is rounded.
- Does this use US or Imperial US fluid ounces?
- A US fluid ounce is 29.5735 mL; an Imperial fluid ounce is 28.4131 mL. This page uses the US fluid ounce.