This converter turns pounds per cubic inch into grams per milliliter instantly, using the exact factor 1 pound per cubic inch = 27.67990471 grams per milliliter. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Used for metals and dense engineering materials. Numerically identical to g/cm³; standard in chemistry.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
pounds per cubic inch- The amount you are converting, measured in pounds per cubic inch
27.67990471- The exact number of grams per milliliter in one pound per cubic inch
grams per milliliter- The converted result
How it works, step by step
- Enter the number of pounds per cubic inch you want to convert.
- The value is multiplied by 27.67990471, the exact conversion factor.
- The result is displayed in grams per milliliter, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 pounds per cubic inch
Multiply 5 by 27.679905. That gives 138.3995 grams per milliliter. A quick sanity check: one pound per cubic inch is larger than one gram per milliliter, so the number should get bigger — and it does.
Converting 72 pounds per cubic inch
72 × 27.679905 = 1,992.95 grams per milliliter. Working backwards, 1,992.95 ÷ 27.679905 returns 72 pounds per cubic inch, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many grams per milliliter are in one pound per cubic inch?
Exactly 27.67990471. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert pounds per cubic inch to grams per milliliter?
Grams Per Milliliter = pounds per cubic inch × 27.67990471. To reverse it, divide instead: pounds per cubic inch = grams per milliliter ÷ 27.67990471, which is the same as multiplying by 0.036127292.
Is the pound per cubic inch bigger than the gram per milliliter?
Yes. One pound per cubic inch equals 27.6799 grams per milliliter, so it is the larger unit.
Why does my answer differ slightly from other lb-in3 to g-ml converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a pound per cubic inch?
Used for metals and dense engineering materials.
What is a gram per milliliter?
Numerically identical to g/cm³; standard in chemistry.
Pounds Per Cubic Inch to grams per milliliter reference table
| Pounds Per Cubic Inch | Grams Per Milliliter |
|---|---|
| 0.5 lb/in³ | 13.84 g/mL |
| 1 lb/in³ | 27.6799 g/mL |
| 2 lb/in³ | 55.3598 g/mL |
| 3 lb/in³ | 83.0397 g/mL |
| 5 lb/in³ | 138.3995 g/mL |
| 10 lb/in³ | 276.799 g/mL |
| 15 lb/in³ | 415.1986 g/mL |
| 20 lb/in³ | 553.5981 g/mL |
| 25 lb/in³ | 691.9976 g/mL |
| 50 lb/in³ | 1,384 g/mL |
| 75 lb/in³ | 2,075.99 g/mL |
| 100 lb/in³ | 2,767.99 g/mL |
| 250 lb/in³ | 6,919.98 g/mL |
| 500 lb/in³ | 13,839.95 g/mL |
| 1000 lb/in³ | 27,679.9 g/mL |
Exact factor: 1 pound per cubic inch = 27.67990471 grams per milliliter. Values rounded for display.