Density Conversions
Convert between kg/m³, g/cm³, g/mL, lb/ft³, lb/in³, oz/in³, kg/L, and specific gravity with instant feedback.
Density converter
Converted value
0.000000 kg/m³
Base: 0.0000 kg/m³
All values round using consistent decimal places to avoid NaN/Infinity.
How to use
Enter any density value and pick the source and target units. This converter normalizes each input to kg/m³ before translating it to the desired output.
Use the filters to hide units that don't match your workflow (SI, chemical indexing, or US customary). You can also edit the target field directly to work backwards and the matching source field will adjust automatically.
1000 kg/m³
1 g/cm³
≈ 62.43 lb/ft³
1 g/cm³ = 1 g/mL = 1000 kg/m³
1 lb/ft³ = 16.018463 kg/m³
1 lb/in³ = 27,679.90471 kg/m³
Base kg/m³ values are shown here and in the results summary for easy reference.
Quick table (common materials)
| Material | kg/m³ | g/cm³ | lb/ft³ |
|---|---|---|---|
| Water (approx) | 1000 | 1.00 | 62.43 |
| Sea water | 1025 | 1.03 | 64.0 |
| Ethanol | 789 | 0.789 | 49.3 |
| Aluminum | 2700 | 2.70 | 168.5 |
| Steel | 7850 | 7.85 | 489.1 |
Methodology
The calculator converts the source value into kg/m³ before translating it to the selected target unit. Specific gravity is derived from that base value (base ÷ 1000), so you can compare how much denser a sample is relative to water.
What about specific gravity?
Specific gravity (SG) is treated as a unit tied to water's density. Because 1 SG × 1000 = density in kg/m³, you can switch between SG and any other supported density unit without extra steps.
FAQ
1. Do temperature and salinity matter?
Yes, especially for liquids, but for most conversions you can rely on the nominal densities provided (e.g., 1000 kg/m³ for freshwater).
2. Can I use this for bulk densities (soil, powders)?
Absolutely. Enter your measured bulk density in whatever unit you have and convert it to the unit you need; the tool makes no assumptions about the material.
3. Why are g/cm³ and g/mL the same?
Because 1 cm³ = 1 mL, so 1 g/cm³ equals 1 g/mL by definition.
Related converters
Density tips
- Always note the temperature when logging liquid densities.
- For recipes, 1 g/mL ≈ 1 g/cm³, so volumes and masses align.
- Engineering reports usually round to 3-4 significant digits.
Inputs used
- From density
- To density
Consistency checks
Non-negative entries; valid unit combinations; coherent outputs.
Operational notes
Keep units consistent, and rely on realistic values for best results. Recalculate when either field changes.
Full original guide (expanded)
<section class="mt-10" id="author">
<h2 class="text-xl font-semibold mb-4">About the author</h2>
<div class="bg-gray-50 border border-gray-200 rounded-lg p-4">
<p class="text-sm text-gray-700">
<a href="https://www.linkedin.com/in/ugocandido92821/" class="text-blue-600 hover:underline" target="_blank" rel="noopener">Ugo Candido</a> builds financial tools and educational resources to help
readers make better money decisions. He focuses on practical,
transparent models that reflect how lenders calculate
payments and total cost of ownership.
</p>
<p class="text-sm text-gray-700 mt-3">
Contact: <a href="mailto:info@calcdomain.com" class="text-blue-600 hover:underline">info@calcdomain.com</a>
</p>
</div>
</section>
<section class="mt-10" id="editorial-policy">
<h2 class="text-xl font-semibold mb-4">Editorial policy</h2>
<div class="bg-gray-50 border border-gray-200 rounded-lg p-4">
<p class="text-sm text-gray-700">
CalcDomain content is created for educational purposes and is
reviewed for clarity, accuracy, and transparency. We do not
accept paid placements that influence calculator outputs.
Inputs and assumptions are shown directly in the interface so
you can verify how results are produced.
</p>
</div>
</section>
<section class="mt-10" id="methodology">
<h2 class="text-xl font-semibold mb-4">Methodology</h2>
<div class="bg-gray-50 border border-gray-200 rounded-lg p-4">
<p class="text-sm text-gray-700">
Results use standard formulas and the values you provide.
Figures are estimates and may differ from lender quotes.
For decisions that require professional guidance, consult a
licensed advisor.
</p>
</div>
</section>
<section class="mt-10" id="sources">
<h2 class="text-xl font-semibold mb-4">Sources</h2>
<div class="bg-gray-50 border border-gray-200 rounded-lg p-4">
<ul class="list-disc list-inside text-sm text-gray-700 space-y-1">
<li>
<a href="https://www.nist.gov/pml/owm/metric-si/si-units" class="text-blue-600 hover:underline" target="_blank" rel="noopener">
NIST: The International System of Units (SI)
</a>
</li>
<li>
<a href="https://openstax.org/details/books/college-algebra" class="text-blue-600 hover:underline" target="_blank" rel="noopener">
OpenStax: College Algebra
</a>
</li>
</ul>
</div>
</section>
<section class="bg-white p-4 rounded-lg shadow-md mt-6"><h2 class="text-lg font-semibold mb-2">Inputs used by this calculator</h2><ul class="text-sm text-gray-700 list-disc pl-5"><li>From density</li><li>To density</li></ul></section><section class="bg-white p-4 rounded-lg shadow-md mt-6"><h2 class="text-lg font-semibold mb-2">Consistency checks</h2><p class="text-sm text-gray-700">Checks: non-negative values, plausible ranges, coherent outputs.</p></section><section class="bg-white p-4 rounded-lg shadow-md mt-6"><h2 class="text-lg font-semibold mb-2">Operational notes</h2><p class="text-sm text-gray-700">Fill in realistic values and keep units and timeframes consistent.</p><p class="text-sm text-gray-700 mt-2">Key entities: Conversions, Density, From density, To density.</p></section><section class="bg-white p-4 rounded-lg shadow-md mt-6"><h2 class="text-lg font-semibold mb-2">Inputs used by this calculator</h2><ul class="text-sm text-gray-700 list-disc pl-5"><li>From density</li><li>To density</li></ul></section><section class="bg-white p-4 rounded-lg shadow-md mt-6"><h2 class="text-lg font-semibold mb-2">Consistency checks</h2><p class="text-sm text-gray-700">Checks: non-negative values, plausible ranges, coherent outputs.</p></section><!-- %%EEAT_STRIP%% -->
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