## Conversion formula

The conversion factor from fluid ounces to teaspoons is 6.0000000000041, which means that 1 fluid ounce is equal to 6.0000000000041 teaspoons:

1 fl oz = 6.0000000000041 tsp

To convert 1.5 fluid ounces into teaspoons we have to multiply 1.5 by the conversion factor in order to get the volume amount from fluid ounces to teaspoons. We can also form a simple proportion to calculate the result:

1 fl oz → 6.0000000000041 tsp

1.5 fl oz → V(tsp)

Solve the above proportion to obtain the volume V in teaspoons:

V(tsp) = 1.5 fl oz × 6.0000000000041 tsp

V(tsp) = 9.0000000000061 tsp

The final result is:

1.5 fl oz → 9.0000000000061 tsp

We conclude that 1.5 fluid ounces is equivalent to 9.0000000000061 teaspoons:

1.5 fluid ounces = 9.0000000000061 teaspoons ## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 teaspoon is equal to 0.11111111111104 × 1.5 fluid ounces.

Another way is saying that 1.5 fluid ounces is equal to 1 ÷ 0.11111111111104 teaspoons.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one point five fluid ounces is approximately nine teaspoons:

1.5 fl oz ≅ 9 tsp

An alternative is also that one teaspoon is approximately zero point one one one times one point five fluid ounces.

## Conversion table

### fluid ounces to teaspoons chart

For quick reference purposes, below is the conversion table you can use to convert from fluid ounces to teaspoons

fluid ounces (fl oz) teaspoons (tsp)
2.5 fluid ounces 15 teaspoons
3.5 fluid ounces 21 teaspoons
4.5 fluid ounces 27 teaspoons
5.5 fluid ounces 33 teaspoons
6.5 fluid ounces 39 teaspoons
7.5 fluid ounces 45 teaspoons
8.5 fluid ounces 51 teaspoons
9.5 fluid ounces 57 teaspoons
10.5 fluid ounces 63 teaspoons
11.5 fluid ounces 69 teaspoons