Tablespoon (US) to Fluid Dram (US) Converter

Volume Converter

40 units available

Decimals:

From

To

4

1 tbsp = 4 fl dr

Formula:

fl dr = tbsp × 4

With your value: 1 tbsp = 4 fl dr

How big is that?

Everyday references on a logarithmic scale, all expressed in tablespoon (us) so you can sanity-check the result.

Soda can (1/45 your value)0.0223 tbsp

Milk carton (1/15 your value)0.0676 tbsp

Kitchen bucket (1/1.5 your value)0.676 tbsp

Your value1.00 tbsp

Car fuel tank (3.4× your value)3.38 tbsp

Bathtub (14× your value)13.5 tbsp

Other Tablespoon (US) to Fluid Dram (US) conversions

2 tbsp to fl dr 3 tbsp to fl dr 4 tbsp to fl dr 5 tbsp to fl dr 6 tbsp to fl dr 7 tbsp to fl dr 8 tbsp to fl dr

Tablespoon (US) to Fluid Dram (US) Conversion Table

Tablespoon (US) (tbsp)	Fluid Dram (US) (fl dr)
0.5	2
1	4
2	8
5	20
10	40
15	60
20	80
25	100
50	200
100	400
250	1,000
500	2,000
1000	4,000

Fluid Dram (US) to Tablespoon (US) Conversion Table

Fluid Dram (US) (fl dr)	Tablespoon (US) (tbsp)
0.5	0.125
1	0.25
2	0.5
5	1.25
10	2.5
15	3.75
20	5
25	6.25
50	12.5
100	25
250	62.5
500	125
1000	250

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.

Tablespoon (US) (tbsp)

Volume

Exact conversion

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

Exact conversion

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 Tablespoon (US) to Fluid Dram (US)

To convert from Tablespoon (US) (tbsp) to Fluid Dram (US) (fl dr), multiply the value by 4.

Formula: fl dr = tbsp × 4

Reverse: tbsp = fl dr × 0.25

Step-by-Step Example

Start with your value in Tablespoon (US). For example: 5 tbsp
Multiply by the conversion factor: 5 x 4
The result is: 20 fl dr

About Tablespoon (US)

The US tablespoon equals approximately 14.79 mL or 3 teaspoons. It is a standard cooking measurement.

Common uses: cooking, baking, medicine.

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 Tablespoon (US)?

There are exactly 4 Fluid Dram (US) in 1 Tablespoon (US). This means the conversion factor from Tablespoon (US) to Fluid Dram (US) is 4.

What is the formula to convert Tablespoon (US) to Fluid Dram (US)?

The formula to convert Tablespoon (US) to Fluid Dram (US) is: fl dr = tbsp × 4. For example, to convert 10 Tablespoon (US) to Fluid Dram (US), you would multiply 10 by 4.

What is a Tablespoon (US)?