Enter Density to Convert
Converted Density
Result: –
Overview
Density is mass per unit volume. Common applications include material selection (metals vs. plastics), fluid dynamics, and chemical engineering. This converter handles basic units—kg/m³, g/cm³, lb/ft³, lb/in³, slug/ft³—and advanced units like g/L, t/m³, oz/in³, lb/gal (US and Imperial). Simply enter a numeric value, choose “From” and “To” units, then click “Convert.” Toggle “Advanced Mode” to reveal extra units.
All conversions route through kilograms per cubic meter (kg/m³). The site is fully responsive and free—no registration is required.
Formula & Methodology
Conversion between any two density units is done in two steps:
- Convert the input to kg/m³ using a factor from the table below.
- Convert that kg/m³ value to the target unit using its factor.
Example: Convert 1.0 g/cm³ to lb/ft³:
- 1.0 g/cm³ → multiply by 1000 → 1000 kg/m³
- 1000 kg/m³ → divide by 16.01846337396 → ≈ 62.428 lb/ft³
Key conversion factors (to/from kg/m³):
| Unit | To kg/m³ | From kg/m³ |
|---|---|---|
| kg/m³ | × 1 | ÷ 1 |
| g/cm³ | × 1000 | ÷ 1000 |
| g/L | × 1000 | ÷ 1000 |
| t/m³ (metric) | × 1000 | ÷ 1000 |
| lb/ft³ | × 16.01846337396 | ÷ 16.01846337396 |
| lb/in³ | × 27679.904710191 | ÷ 27679.904710191 |
| oz/in³ | × 1729.994043 | ÷ 1729.994043 |
| lb/gal (US) | × 119.826427 | ÷ 119.826427 |
| lb/gal (Imp) | × 99.77637052 | ÷ 99.77637052 |
| slug/ft³ | × 515.378818 | ÷ 515.378818 |
Examples
-
Convert 0.8 g/cm³ (plastic) to lb/ft³:
0.8 × 1000 = 800 kg/m³ → 800 ÷ 16.01846337396 ≈ 49.92 lb/ft³ -
Convert 62.4 lb/ft³ (water) to kg/m³:
62.4 × 0.06242796 ≈ 999.99 kg/m³ → ≈ 0.99999 g/cm³ -
Convert 1.225 kg/m³ (air at sea level) to slug/ft³:
1.225 ÷ 515.378818 ≈ 0.002377 slug/ft³ -
Convert 1 oz/in³ (metal) to t/m³:
1 oz/in³ × 1729.994043 = 1729.994043 kg/m³ ≈ 1.72999 t/m³ -
Convert 1000 g/L (water) to lb/gal (US):
1000 kg/m³ ÷ 119.826427 ≈ 8.3454 lb/gal (US)
Frequently Asked Questions
What density units are supported?
Basic units: kg/m³, g/cm³, lb/ft³, lb/in³, slug/ft³. Advanced units (Advanced Mode): g/L, t/m³, oz/in³, lb/gal (US), lb/gal (Imp).
How do I know which factor to use?
This tool internally converts everything to kg/m³. Each unit has a known multiplier to/from kg/m³ (shown in the table). Selecting any “From” and “To” combination yields the correct result via that intermediate.
Why is Advanced Mode useful?
Advanced Mode is for specialized fields—chemistry (g/L), materials science (t/m³), pharmaceuticals (oz/in³), fluid engineering (lb/gal), and ballistics (slug/ft³). For common engineering or everyday tasks, the basic units suffice.
Can I use this converter offline?
The page itself must be loaded from the web. Once loaded, you can disconnect and still use the converter, as it runs entirely in your browser.
Is the converter precise?
All factors use standard definitions, and results display to six decimal places. For greater precision, you may adjust the JavaScript conversion logic.