Convert Drop to Cubic Foot
Convert drops to cubic feet instantly. 1 drop = 1.765733e-6 cubic foot — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Cubic Foot to Drop converter for the reverse conversion.
Units explained
Drop
A drop is a nominal small volume of about 0.05 mL; the exact size varies with the liquid and dropper.
Standardized loosely in pharmacy as roughly 1/20 of a milliliter (the metric drop).
Used for liquid medication and flavor dosing; treat as approximate.
Pharmacy convention.
Cubic Foot
A cubic foot is the volume of a cube one foot on a side (28.3168 L).
Derived by cubing the international foot (0.3048 m).
Used for natural gas, refrigerators, shipping and HVAC.
1959 yard agreement.
Drop to Cubic Foot conversion formula
Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.
The relationship between drops and cubic feet:
To convert drops to cubic feet, multiply the value in drops by 1.765733e-6. To reverse, multiply cubic feet by 566336.9318400001.
How to use this converter
Type a value into the calculator. The result in cubic feet updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Cubic Foot to Drop converter for the reverse direction.
Step-by-step: convert drops to cubic feet
- Write down the value in drops (gtt).
- Multiply that value by the factor 1.765733e-6.
- The product is the equivalent value in cubic feet (ft³).
- To reverse, multiply the cubic foot value by 566336.9318400001.
Worked examples
Example 1 — Convert 1 gtt to ft³:
1 × 1.765733e-6 = 1.765733e-6 ft³
Example 2 — Convert 100 gtt to ft³:
100 × 1.765733e-6 = 0.0001765733 ft³
Real-world example — Sub-micron to millimeter
500,000 drops converts to a small everyday quantity in cubic feet — useful when relating optical-wavelength specifications to physical mounting hardware.
500000 gtt × 1.765733e-6 = 0.882866668 ft³
Real-world example — From wavelengths to millimeter-scale objects
A value of one million drops sounds vast at the atomic scale but converts to a small everyday quantity in cubic feet — useful when relating optical-wavelength specifications to physical mounting hardware.
1000000 gtt × 1.765733e-6 = 1.7657333361 ft³
Drop to Cubic Foot conversion table
Standard reference values for converting drops to cubic feet:
| Drop [gtt] | Cubic Foot [ft³] |
|---|---|
| 0.01 | 1.765733e-8 |
| 0.1 | 1.765733e-7 |
| 1 | 1.765733e-6 |
| 2 | 3.531467e-6 |
| 3 | 5.2972e-6 |
| 4 | 7.062933e-6 |
| 5 | 8.828667e-6 |
| 10 | 1.765733e-5 |
| 20 | 3.531467e-5 |
| 30 | 5.2972e-5 |
| 40 | 7.062933e-5 |
| 50 | 8.828667e-5 |
| 100 | 0.0001765733 |
| 500 | 0.0008828667 |
| 1000 | 0.0017657333 |
Frequently asked questions
How many cubic feet is 1 drop?
How do I convert drops to cubic feet?
How do I convert cubic feet back to drops?
How many cubic feet is 100 drops?
Popular volume unit conversions
Convert Drop to other volume units
Show all Drop conversions
Metric / SI (3 units)
US Customary (Liquid) (1 units)
Imperial (UK) (1 units)
Cubic (length-derived) (1 units)
Sources & references
Conversion factor (1 gtt = 1.765733e-6 ft³) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.