Teaspoon (US) to Fluid Dram (US) Converter
Convert Teaspoon (US) (tsp) to Fluid Dram (US) (fl dr) instantly. 1 tsp = 1.333333 fl dr.
Volume Converter
40 units available
1 tsp = 1.333333 fl dr
Formula:
fl dr = tsp × 1.3333333333With your value: 1 tsp = 1.33333333 fl dr
How big is that?
Everyday references on a logarithmic scale, all expressed in teaspoon (us) so you can sanity-check the result.
Other Teaspoon (US) to Fluid Dram (US) conversions
Teaspoon (US) to Fluid Dram (US) Conversion Table
| Teaspoon (US) (tsp) | Fluid Dram (US) (fl dr) |
|---|---|
| 0.5 | 0.666667 |
| 1 | 1.333333 |
| 2 | 2.666667 |
| 5 | 6.666667 |
| 10 | 13.333333 |
| 15 | 20 |
| 20 | 26.666667 |
| 25 | 33.333333 |
| 50 | 66.666667 |
| 100 | 133.333333 |
| 250 | 333.333333 |
| 500 | 666.666667 |
| 1000 | 1,333.333333 |
Fluid Dram (US) to Teaspoon (US) Conversion Table
| Fluid Dram (US) (fl dr) | Teaspoon (US) (tsp) |
|---|---|
| 0.5 | 0.375 |
| 1 | 0.75 |
| 2 | 1.5 |
| 5 | 3.75 |
| 10 | 7.5 |
| 15 | 11.25 |
| 20 | 15 |
| 25 | 18.75 |
| 50 | 37.5 |
| 100 | 75 |
| 250 | 187.5 |
| 500 | 375 |
| 1000 | 750 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Teaspoon (US) (tsp)
Volume
Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Fluid Dram (US) (fl dr)
Volume
Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Teaspoon (US) to Fluid Dram (US)
To convert from Teaspoon (US) (tsp) to Fluid Dram (US) (fl dr), multiply the value by 1.3333333333.
Formula: fl dr = tsp × 1.3333333333
Reverse: tsp = fl dr × 0.75
Step-by-Step Example
- Start with your value in Teaspoon (US). For example: 5 tsp
- Multiply by the conversion factor: 5 x 1.3333333333
- The result is: 6.666667 fl dr
About Teaspoon (US)
The US teaspoon equals approximately 4.93 mL. It is one of the most common cooking measurements.
Common uses: cooking, medicine dosage, baking.
About Fluid Dram (US)
The fluid dram (us) (fl dr) is a unit of volume and capacity. One fluid dram (us) equals 0.003696691195 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: volume calculations, engineering and science, education.
Frequently Asked Questions
How many Fluid Dram (US) are in 1 Teaspoon (US)?
There are exactly 1.3333333333 Fluid Dram (US) in 1 Teaspoon (US). This means the conversion factor from Teaspoon (US) to Fluid Dram (US) is 1.3333333333.
What is the formula to convert Teaspoon (US) to Fluid Dram (US)?
The formula to convert Teaspoon (US) to Fluid Dram (US) is: fl dr = tsp × 1.3333333333. For example, to convert 10 Teaspoon (US) to Fluid Dram (US), you would multiply 10 by 1.3333333333.
What is a Teaspoon (US)?
The US teaspoon equals approximately 4.93 mL. It is one of the most common cooking measurements.
What is a Fluid Dram (US)?
The fluid dram (us) (fl dr) is a unit of volume and capacity. One fluid dram (us) equals 0.003696691195 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Teaspoon (US)?
The Teaspoon (US) is commonly used in cooking, medicine dosage, baking.
Related Volume Conversions
Cite this page
UnitConvertLab. (2026). Teaspoon (US) to Fluid Dram (US) converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/teaspoon_us-to-dram_us