Mass Converter
Convert a mass between milligrams, grams, kilograms, tonnes, ounces, and pounds. For example, 1 kg equals 2.204622 lb.
What this calculator does
The Mass Converter estimates your result instantly from the values you enter, using standard math & conversions formulas. Convert a mass between milligrams, grams, kilograms, tonnes, ounces, and pounds. For example, 1 kg equals 2.204622 lb. Calculations run in your browser, so nothing you type is sent to a server, and the output is an estimate rather than a certified or official figure.
Result
About Mass Converter
The Mass Converter changes a mass between six units: mg, g, kg, t, oz, and lb. It converts your value to kilograms internally, then to the unit you select.
Formula & Mathematical Calculation
Converted Value = f(Mass, From, To)
Calculated according to standard math formulas implemented in the calculator core.
Calculation Example
Enter 1, set From to kg and To to lb, then Calculate. The Converted Value box shows 2.204622 lb, and the note reads '1 kg equals 2.2046 lb.'
Key Benefits
- Converts among six mass units in any From and To pairing
- Uses factors such as 0.4535924 kg per pound and 0.0283495 kg per ounce
- Shows the converted value to six decimals with the target unit label
How to Use this Calculator
-
Enter the mass
Type the mass in the Mass field. -
Pick the units
Choose the From unit and the To unit from the dropdowns. -
Read the result
Click Calculate and read the Converted Value box.
Assumptions & Limitations
What the calculation assumes
- Every value you enter is treated as an exact, known amount.
- Any rate or interval you enter is assumed to hold for the whole period unless the form asks for it separately.
- Results use standard published formulas and account only for the values entered above.
- Rounding is applied for display; the underlying calculation uses your full precision.
- Results are returned in the same units you enter, unless the tool states the output unit.
What it does not cover
- Mass Converter produces a calculated result for reference and learning, not a certified or official measurement.
- Real-world outcomes differ when tolerances, rounding rules or local standards apply.
- Definitions and standards vary by region and change over time; verify the convention that applies to your case.
- Figures are only as accurate as the inputs you supply — check them before acting on the result.
- For work where the result carries real consequences, confirm it against an authoritative source.
Frequently Asked Questions
Free to use, no account needed. Calculations run in your browser, so nothing you type is sent to a server. Results are estimates — how we build and check our calculators.