Density Converter — Convert kg/m³, g/cm³, lb/ft³, and lb/in³ Instantly
Free online density converter. Convert between kg/m³, g/cm³, lb/ft³, and lb/in³ with instant results. Perfect for science, engineering, construction, and cooking.
Density tells us how much mass is packed into a given volume. Our free converter makes it simple to switch between kg/m³, g/cm³, lb/ft³, and lb/in³ instantly. It runs fully client-side, supports copy buttons for quick results, and starts with water (1 g/cm³ = 1000 kg/m³) as a default.
Conversion factors used
- 1 g/cm³ = 1000 kg/m³
- 1 lb/ft³ ≈ 16.018463 kg/m³
- 1 lb/in³ ≈ 27,679.905 kg/m³
These are the exact constants used by the converter, so your numbers always match.
Why use a density converter?
Engineers, builders, scientists, and even cooks often face unit mismatches. A recipe may give density in g/cm³, while a construction table lists materials in lb/ft³. Manual math is error-prone—our tool makes it instant, accurate, and mobile-friendly.
FAQ
Does it support lb/in³?
Yes, unlike most free converters, Tolyo’s tool includes pound-per-cubic-inch for high-precision use cases.
Can I copy results?
Every field has a one-click copy button. Handy for reports, spreadsheets, or lab notes.
Do I need an internet connection?
No. Once loaded, the tool runs fully in your browser—fast, private, and offline-ready.