Fluid Dram (US) to Cubic Inch Converter

Volume Converter

40 units available

Decimals:

From

To

0.225586

1 fl dr = 0.225586 in³

Formula:

in³ = fl dr × 0.2255859375

With your value: 1 fl dr = 0.22558594 in³

How big is that?

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

Soda can (1/11 your value)0.0893 fl dr

Milk carton (1/3.7 your value)0.271 fl dr

Your value1.00 fl dr

Kitchen bucket (2.7× your value)2.71 fl dr

Car fuel tank (14× your value)13.5 fl dr

Bathtub (54× your value)54.1 fl dr

Other Fluid Dram (US) to Cubic Inch conversions

2 fl dr to in³ 3 fl dr to in³ 4 fl dr to in³ 5 fl dr to in³ 6 fl dr to in³ 7 fl dr to in³ 8 fl dr to in³

Fluid Dram (US) to Cubic Inch Conversion Table

Fluid Dram (US) (fl dr)	Cubic Inch (in³)
0.5	0.112793
1	0.225586
2	0.451172
5	1.12793
10	2.255859
15	3.383789
20	4.511719
25	5.639648
50	11.279297
100	22.558594
250	56.396484
500	112.792969
1000	225.585937

Cubic Inch to Fluid Dram (US) Conversion Table

Cubic Inch (in³)	Fluid Dram (US) (fl dr)
0.5	2.21645
1	4.4329
2	8.865801
5	22.164502
10	44.329004
15	66.493506
20	88.658009
25	110.822511
50	221.645022
100	443.290043
250	1,108.225108
500	2,216.450216
1000	4,432.900433

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.

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

Cubic Inch (in³)

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 Fluid Dram (US) to Cubic Inch

To convert from Fluid Dram (US) (fl dr) to Cubic Inch (in³), multiply the value by 0.2255859375.

Formula: in³ = fl dr × 0.2255859375

Reverse: fl dr = in³ × 4.4329004329

Step-by-Step Example

Start with your value in Fluid Dram (US). For example: 5 fl dr
Multiply by the conversion factor: 5 x 0.2255859375
The result is: 1.12793 in³

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.

About Cubic Inch

The cubic inch (in³) is a unit of volume and capacity. One cubic inch equals 0.016387064 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 Cubic Inch are in 1 Fluid Dram (US)?

There are exactly 0.2255859375 Cubic Inch in 1 Fluid Dram (US). This means the conversion factor from Fluid Dram (US) to Cubic Inch is 0.2255859375.

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

The formula to convert Fluid Dram (US) to Cubic Inch is: in³ = fl dr × 0.2255859375. For example, to convert 10 Fluid Dram (US) to Cubic Inch, you would multiply 10 by 0.2255859375.

What is a Fluid Dram (US)?