Mass per volume density.
Pounds per Teaspoon to Grams per Cup Converter — lb/tsp to g/cup
Convert Pound per Teaspoon (lb/tsp) to Gram per Cup (g/cup) using the exact conversion factor (1 pound per teaspoon = 21,772.43376 gram per cup). See the formula, worked examples, and conversion table.
Pounds per Teaspoon to Grams 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 92026.69618 / 4.226752838.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Teaspoon to Grams per Cup
Pound per Teaspoon and Gram 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
grams per cup = pounds per teaspoon × 21772.43376
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per teaspoon equals 92026.6961794 base units, and 1 gram per cup equals 4.22675283773 base units, so dividing one by the other gives the direct pound per teaspoon-to-gram per cup factor of 21772.43376.
Simple example
1 lb/tsp × 21772.43376 = 21,772.43376 g/cup
1 pound per teaspoon = 21,772.43376 grams per cup.
Real-world example
1,000 lb/tsp × 21772.43376 = 21,772,433.76 g/cup
1,000 pounds per teaspoon = 21,772,433.76 grams per cup.
Conversion table
| Pound per Teaspoon (lb/tsp) | Gram per Cup (g/cup) |
|---|---|
| 0.1 lb/tsp | 2,177.243376 g/cup |
| 1 lb/tsp | 21,772.43376 g/cup |
| 10 lb/tsp | 217,724.3376 g/cup |
| 100 lb/tsp | 2,177,243.376 g/cup |
| 1,000 lb/tsp | 21,772,433.76 g/cup |
| 10,000 lb/tsp | 217,724,337.6 g/cup |
Reverse conversion: Gram per Cup to Pound per Teaspoon
1 g/cup × 0.00004592963796 = 0.0000459296 lb/tsp
1 gram per cup = 0.0000459296 pounds per teaspoon.
pounds per teaspoon = grams per cup × 0.0000459296379552
For a page dedicated to this direction, see Gram per Cup to Pound per Teaspoon.
Understanding the Pound per Teaspoon (lb/tsp)
Mass per volume density.
Understanding the Gram per Cup (g/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grams per cup are in 1 pound per teaspoon?
1 pound per teaspoon equals 21,772.43376 grams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert pound per teaspoon to gram per cup?
Multiply the pound per teaspoon value by 21772.43376. The converter above does this instantly to whatever precision you set.
How do I convert gram per cup back to pound per teaspoon?
Use the reverse factor: 1 gram per cup equals 0.0000459296 pounds per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per teaspoon?
Pound per Teaspoon (lb/tsp) is a unit of density.
What is a gram per cup?
Gram per Cup (g/cup) is a unit of density.
Is the pound per teaspoon to gram per cup conversion exact?
Yes. Both pound per teaspoon and gram per cup are defined by fixed standards rather than physical artifacts, so the factor of 21772.43376 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.