Mass per volume density.
Pounds per Imperial gallon to Hectograms per Teaspoon Converter — lb/imp gal to hg/tsp
Convert Pound per Imperial gallon (lb/imp gal) to Hectogram per Teaspoon (hg/tsp) using the exact conversion factor (1 pound per imperial gallon = 0.0049178992 hectogram per teaspoon). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Hectograms per Teaspoon 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 99.77637266 / 20288.41362.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Hectograms per Teaspoon
Pound per Imperial gallon and Hectogram per Teaspoon 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
hectograms per teaspoon = pounds per imperial gallon × 0.00491789917765
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 hectogram per teaspoon equals 20288.4136211 base units, so dividing one by the other gives the direct pound per imperial gallon-to-hectogram per teaspoon factor of 0.00491789917765.
Simple example
1 lb/imp gal × 0.004917899178 = 0.0049178992 hg/tsp
1 pound per imperial gallon = 0.0049178992 hectograms per teaspoon.
Real-world example
1,000 lb/imp gal × 0.004917899178 = 4.917899178 hg/tsp
1,000 pounds per imperial gallon = 4.917899178 hectograms per teaspoon.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Hectogram per Teaspoon (hg/tsp) |
|---|---|
| 0.1 lb/imp gal | 0.0004917899 hg/tsp |
| 1 lb/imp gal | 0.0049178992 hg/tsp |
| 10 lb/imp gal | 0.0491789918 hg/tsp |
| 100 lb/imp gal | 0.4917899178 hg/tsp |
| 1,000 lb/imp gal | 4.917899178 hg/tsp |
| 10,000 lb/imp gal | 49.17899178 hg/tsp |
Reverse conversion: Hectogram per Teaspoon to Pound per Imperial gallon
0.0049178992 hg/tsp × 203.3388575 = 1.000000005 lb/imp gal
0.0049178992 hectograms per teaspoon = 1.000000005 pounds per imperial gallon.
pounds per imperial gallon = hectograms per teaspoon × 203.338857483
For a page dedicated to this direction, see Hectogram per Teaspoon to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Hectogram per Teaspoon (hg/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectograms per teaspoon are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 0.0049178992 hectograms per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to hectogram per teaspoon?
Multiply the pound per imperial gallon value by 0.004917899178. The converter above does this instantly to whatever precision you set.
How do I convert hectogram per teaspoon back to pound per imperial gallon?
Use the reverse factor: 1 hectogram per teaspoon equals 203.3388575 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
What is a hectogram per teaspoon?
Hectogram per Teaspoon (hg/tsp) is a unit of density.
Is the pound per imperial gallon to hectogram per teaspoon conversion exact?
Yes. Both pound per imperial gallon and hectogram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.004917899178 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.