Mass per volume density.
Micrograms per Liter to Drams per Cup Converter — ug/L to dr/cup
Convert Microgram per Liter (ug/L) to Dram per Cup (dr/cup) using the exact conversion factor (1 microgram per liter = 1.335265e-7 dram per cup). See the formula, worked examples, and conversion table.
Micrograms per Liter to Drams per Cup converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 1e-6 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Liter to Drams per Cup
Microgram per Liter and Dram per Cup both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
drams per cup = micrograms per liter × 1.335265e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per liter equals 0.000001 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct microgram per liter-to-dram per cup factor of 1.335265e-7.
Simple example
1 ug/L × 1.335265e-7 = 1.335265e-7 dr/cup
1 microgram per liter = 1.335265e-7 drams per cup.
Real-world example
1,000 ug/L × 1.335265e-7 = 0.0001335265 dr/cup
1,000 micrograms per liter = 0.0001335265 drams per cup.
Conversion table
| Microgram per Liter (ug/L) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 ug/L | 1.335265e-8 dr/cup |
| 1 ug/L | 1.335265e-7 dr/cup |
| 10 ug/L | 0.0000013353 dr/cup |
| 100 ug/L | 0.0000133526 dr/cup |
| 1,000 ug/L | 0.0001335265 dr/cup |
| 10,000 ug/L | 0.0013352647 dr/cup |
Reverse conversion: Dram per Cup to Microgram per Liter
1.335265e-7 dr/cup × 7489151.707 = 1.000000215 ug/L
1.335265e-7 drams per cup = 1.000000215 micrograms per liter.
micrograms per liter = drams per cup × 7489151.70731
For a page dedicated to this direction, see Dram per Cup to Microgram per Liter.
Understanding the Microgram per Liter (ug/L)
Mass per volume density.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cup are in 1 microgram per liter?
1 microgram per liter equals 1.335265e-7 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per liter to dram per cup?
Multiply the microgram per liter value by 1.335265e-7. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to microgram per liter?
Use the reverse factor: 1 dram per cup equals 7,489,151.707 micrograms per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the microgram per liter to dram per cup conversion exact?
Yes. Both microgram per liter and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 1.335265e-7 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.