Cup (US) to Fluid Dram (US) Converter
Convert Cup (US) (cup) to Fluid Dram (US) (fl dr) instantly. 1 cup = 64 fl dr.
Volume Converter
40 units available
1 cup = 64 fl dr
Formula:
fl dr = cup × 64.0000000002With your value: 1 cup = 64 fl dr
How big is that?
Everyday references on a logarithmic scale, all expressed in cup (us) so you can sanity-check the result.
Other Cup (US) to Fluid Dram (US) conversions
Cup (US) to Fluid Dram (US) Conversion Table
| Cup (US) (cup) | Fluid Dram (US) (fl dr) |
|---|---|
| 0.5 | 32 |
| 1 | 64 |
| 2 | 128 |
| 5 | 320 |
| 10 | 640 |
| 15 | 960 |
| 20 | 1,280 |
| 25 | 1,600 |
| 50 | 3,200 |
| 100 | 6,400 |
| 250 | 16,000 |
| 500 | 32,000 |
| 1000 | 64,000 |
Fluid Dram (US) to Cup (US) Conversion Table
| Fluid Dram (US) (fl dr) | Cup (US) (cup) |
|---|---|
| 0.5 | 0.007812 |
| 1 | 0.015625 |
| 2 | 0.03125 |
| 5 | 0.078125 |
| 10 | 0.15625 |
| 15 | 0.234375 |
| 20 | 0.3125 |
| 25 | 0.390625 |
| 50 | 0.78125 |
| 100 | 1.5625 |
| 250 | 3.90625 |
| 500 | 7.8125 |
| 1000 | 15.625 |
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.
Cup (US) (cup)
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 Cup (US) to Fluid Dram (US)
To convert from Cup (US) (cup) to Fluid Dram (US) (fl dr), multiply the value by 64.0000000002.
Formula: fl dr = cup × 64.0000000002
Reverse: cup = fl dr × 0.015625
Step-by-Step Example
- Start with your value in Cup (US). For example: 5 cup
- Multiply by the conversion factor: 5 x 64.0000000002
- The result is: 320 fl dr
About Cup (US)
The US cup equals approximately 236.6 mL and is a standard cooking measurement in the United States.
Common uses: baking, cooking, recipes.
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 Cup (US)?
There are exactly 64.0000000002 Fluid Dram (US) in 1 Cup (US). This means the conversion factor from Cup (US) to Fluid Dram (US) is 64.0000000002.
What is the formula to convert Cup (US) to Fluid Dram (US)?
The formula to convert Cup (US) to Fluid Dram (US) is: fl dr = cup × 64.0000000002. For example, to convert 10 Cup (US) to Fluid Dram (US), you would multiply 10 by 64.0000000002.
What is a Cup (US)?
The US cup equals approximately 236.6 mL and is a standard cooking measurement in the United States.
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 Cup (US)?
The Cup (US) is commonly used in baking, cooking, recipes.
Related Volume Conversions
Cite this page
UnitConvertLab. (2026). Cup (US) to Fluid Dram (US) converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/cup_us-to-dram_us