Fluid Dram (UK) to Fluid Ounce (UK) Converter

Volume Converter

40 units available

Decimals:

From

To

0.125

1 fl dr (UK) = 0.125 fl oz (UK)

Formula:

fl oz (UK) = fl dr (UK) × 0.1249999461

With your value: 1 fl dr (UK) = 0.12499995 fl oz (UK)

How big is that?

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

Soda can (1/11 your value)0.0929 fl dr (UK)

Milk carton (1/3.6 your value)0.282 fl dr (UK)

Your value1.00 fl dr (UK)

Kitchen bucket (2.8× your value)2.82 fl dr (UK)

Car fuel tank (14× your value)14.1 fl dr (UK)

Bathtub (56× your value)56.3 fl dr (UK)

Other Fluid Dram (UK) to Fluid Ounce (UK) conversions

2 fl dr (UK) to fl oz (UK)3 fl dr (UK) to fl oz (UK)4 fl dr (UK) to fl oz (UK)5 fl dr (UK) to fl oz (UK)6 fl dr (UK) to fl oz (UK)7 fl dr (UK) to fl oz (UK)8 fl dr (UK) to fl oz (UK)

Fluid Dram (UK) to Fluid Ounce (UK) Conversion Table

Fluid Dram (UK) (fl dr (UK))	Fluid Ounce (UK) (fl oz (UK))
0.5	0.0625
1	0.125
2	0.25
5	0.625
10	1.249999
15	1.874999
20	2.499999
25	3.124999
50	6.249997
100	12.499995
250	31.249987
500	62.499973
1000	124.999946

Fluid Ounce (UK) to Fluid Dram (UK) Conversion Table

Fluid Ounce (UK) (fl oz (UK))	Fluid Dram (UK) (fl dr (UK))
0.5	4.000002
1	8.000003
2	16.000007
5	40.000017
10	80.000035
15	120.000052
20	160.000069
25	200.000086
50	400.000173
100	800.000345
250	2,000.000863
500	4,000.001726
1000	8,000.003452

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 (UK) (fl dr (UK))

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 Ounce (UK) (fl oz (UK))

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 (UK) to Fluid Ounce (UK)

To convert from Fluid Dram (UK) (fl dr (UK)) to Fluid Ounce (UK) (fl oz (UK)), multiply the value by 0.1249999461.

Formula: fl oz (UK) = fl dr (UK) × 0.1249999461

Reverse: fl dr (UK) = fl oz (UK) × 8.0000034519

Step-by-Step Example

Start with your value in Fluid Dram (UK). For example: 5 fl dr (UK)
Multiply by the conversion factor: 5 x 0.1249999461
The result is: 0.625 fl oz (UK)

About Fluid Dram (UK)

The fluid dram (uk) (fl dr (UK)) is a unit of volume and capacity. One fluid dram (uk) equals 0.00355163128 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 Fluid Ounce (UK)

The fluid ounce (uk) (fl oz (UK)) is a unit of volume and capacity. One fluid ounce (uk) equals 0.0284130625 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 Ounce (UK) are in 1 Fluid Dram (UK)?

There are exactly 0.1249999461 Fluid Ounce (UK) in 1 Fluid Dram (UK). This means the conversion factor from Fluid Dram (UK) to Fluid Ounce (UK) is 0.1249999461.

What is the formula to convert Fluid Dram (UK) to Fluid Ounce (UK)?

The formula to convert Fluid Dram (UK) to Fluid Ounce (UK) is: fl oz (UK) = fl dr (UK) × 0.1249999461. For example, to convert 10 Fluid Dram (UK) to Fluid Ounce (UK), you would multiply 10 by 0.1249999461.

What is a Fluid Dram (UK)?