Mass per volume density.
Kilograms per Teaspoon to Pounds per Cup Converter — kg/tsp to lb/cup
Convert Kilogram per Teaspoon (kg/tsp) to Pound per Cup (lb/cup) using the exact conversion factor (1 kilogram per teaspoon = 105.8218858 pound per cup). See the formula, worked examples, and conversion table.
Kilograms per Teaspoon to Pounds 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 202884.1362 / 1917.222837.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Teaspoon to Pounds per Cup
Kilogram per Teaspoon and Pound 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
pounds per cup = kilograms per teaspoon × 105.821885849
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per teaspoon equals 202884.136211 base units, and 1 pound per cup equals 1917.22283707 base units, so dividing one by the other gives the direct kilogram per teaspoon-to-pound per cup factor of 105.821885849.
Simple example
1 kg/tsp × 105.8218858 = 105.8218858 lb/cup
1 kilogram per teaspoon = 105.8218858 pounds per cup.
Real-world example
1,000 kg/tsp × 105.8218858 = 105,821.8858 lb/cup
1,000 kilograms per teaspoon = 105,821.8858 pounds per cup.
Conversion table
| Kilogram per Teaspoon (kg/tsp) | Pound per Cup (lb/cup) |
|---|---|
| 0.1 kg/tsp | 10.58218858 lb/cup |
| 1 kg/tsp | 105.8218858 lb/cup |
| 10 kg/tsp | 1,058.218858 lb/cup |
| 100 kg/tsp | 10,582.18858 lb/cup |
| 1,000 kg/tsp | 105,821.8858 lb/cup |
| 10,000 kg/tsp | 1,058,218.858 lb/cup |
Reverse conversion: Pound per Cup to Kilogram per Teaspoon
105.8218858 lb/cup × 0.009449841042 = 0.9999999995 kg/tsp
105.8218858 pounds per cup = 0.9999999995 kilograms per teaspoon.
kilograms per teaspoon = pounds per cup × 0.00944984104167
For a page dedicated to this direction, see Pound per Cup to Kilogram per Teaspoon.
Understanding the Kilogram per Teaspoon (kg/tsp)
Mass per volume density.
Understanding the Pound per Cup (lb/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cup are in 1 kilogram per teaspoon?
1 kilogram per teaspoon equals 105.8218858 pounds per cup, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per teaspoon to pound per cup?
Multiply the kilogram per teaspoon value by 105.8218858. The converter above does this instantly to whatever precision you set.
How do I convert pound per cup back to kilogram per teaspoon?
Use the reverse factor: 1 pound per cup equals 0.009449841 kilograms per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per teaspoon?
Kilogram per Teaspoon (kg/tsp) is a unit of density.
What is a pound per cup?
Pound per Cup (lb/cup) is a unit of density.
Is the kilogram per teaspoon to pound per cup conversion exact?
Yes. Both kilogram per teaspoon and pound per cup are defined by fixed standards rather than physical artifacts, so the factor of 105.8218858 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.