Unit converter
Convert length, weight, and area between common units.
The unit converter handles everyday length, weight, and area conversions — pick a category, enter a value, choose the units to convert from and to, and the result updates instantly, covering common metric and imperial units for each category.
Result
0.1 cm
How to use
- Pick a category (length, weight, or area), then enter a value and choose the units to convert between.
- The result updates automatically.
Common use scenarios
- Converting a measurement from imperial to metric or vice versa.
- Checking a recipe, shipping, or DIY measurement in a different unit.
- Converting an area figure between square meters and square feet or acres.
- Quickly converting a weight figure between kilograms and pounds.
✓Content & verification reviewed: 2026-08-27
How we verify Unit converter
How to confirm the converted value is correct.
Each category converts through a single base unit internally
Length converts through meters, weight through kilograms, and area through square meters — so converting from any unit to any other unit in the same category is always consistent, no matter which pair you pick.
Switching categories resets the unit selection
Length, weight, and area use entirely different unit sets, so changing category updates the available "from"/"to" options — double-check both units after switching categories.
Only common, everyday units are included
This covers units like mm/cm/m/km/in/ft/yd/mi for length, mg/g/kg/t/oz/lb for weight, and m²/km²/cm²/ha/ft²/yd²/acre for area — not specialized scientific or industry-specific units.
Before you rely on the result
- You've selected the right category (length, weight, or area) for your value.
- Both the "from" and "to" units are the ones you actually intend, especially after switching categories.
- The result's number of decimal places is precise enough for your use.
- You've double-checked a surprising result against a rough mental estimate.
Who this is for
- Anyone converting a measurement between imperial and metric.
- People checking a recipe, shipping, or DIY measurement in a different unit.
- Anyone converting an area figure between different unit systems.
- People needing a quick weight conversion between kg and lb.
Real-world examples
Converting a recipe measurement
Someone following a recipe in different units converts an ingredient weight from grams to ounces.
Checking a shipping dimension
A person converts a package length from inches to centimeters to check against a shipping carrier's requirements.
Converting a property area
Someone converts a property's area from square meters to acres to compare against a listing in a different unit system.
Limitations
- Covers common everyday units only — not specialized scientific or industry-specific units.
Frequently asked questions
Why did the unit options change when I switched categories?
Length, weight, and area each have their own distinct set of units — switching category updates which units are available, so re-check both "from" and "to" after switching.
Does this include scientific or specialized units?
No — only common, everyday units for each category. Specialized industry or scientific units aren't included.
How precise is the result?
Results are shown with up to 6 decimal places where relevant — precise enough for everyday use, though very large or small values may show rounding at that precision.
Can I convert volume or temperature here?
Not currently — this tool covers length, weight, and area only.
🔒 Runs in your browser — nothing is uploaded. Results are for reference only; see the disclaimer. Last updated: 2026-08-27
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