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9 Teaspoons to Fluid Ounces

9 teaspoons equals 1.5 fluid ounces. Use the formula, worked example, and conversion table below to check the math.

9 tsp = 1.5 fl oz
tsp ÷ 6 = fl oz
Try: 4 tsp to fl oz 8 tsp to fl oz 10 tsp to fl oz 14 tsp to fl oz
9 tsp is also
9 tsp = 0.0444 L 9 tsp = 0.0117 gal 9 tsp = 44.36 mL 9 tsp = 0.1875 cup 9 tsp = 0.0938 pt 9 tsp = 0.0469 qt 9 tsp = 3 tbsp
tsp
1.5 fl oz

Step-by-Step Calculation

tsp ÷ 6 = fl oz
  1. Start with 9 tsp
  2. Divide by 6: 9 ÷ 6 = 1.5
  3. Result: 9 tsp = 1.5 fl oz

This conversion factor (0.166667) is the same for every teaspoon to fluid ounce calculation.

Teaspoon to Fluid Ounce Conversion Table

Teaspoons (tsp) Fluid Ounces (fl oz)
1 tsp 0.1667 fl oz
2 tsp 0.3333 fl oz
5 tsp 0.8333 fl oz
9 tsp 1.5 fl oz
10 tsp 1.67 fl oz
15 tsp 2.5 fl oz
20 tsp 3.33 fl oz
25 tsp 4.17 fl oz
50 tsp 8.33 fl oz
75 tsp 12.5 fl oz
100 tsp 16.67 fl oz
250 tsp 41.67 fl oz
500 tsp 83.33 fl oz
1,000 tsp 166.67 fl oz
calculate Teaspoon to Fluid Ounce Converter swap_horiz Fluid Ounce to Teaspoon Converter functions Teaspoon to Fluid Ounce Formula water_drop All Volume / Capacity Conversions

Frequently Asked Questions

9 teaspoons equals 1.5 fluid ounces.
The formula is: tsp ÷ 6 = fl oz. See the tsp to fl oz formula page for worked examples.
Use the fluid ounces to teaspoons converter. The reverse formula is: fl oz × 6 = tsp.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (tsp ÷ 6 = fl oz) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026