Weight Converter – Free Online Unit Converter
Convert between kilograms, pounds, ounces, grams, stone, tonnes, milligrams, micrograms, carats, troy ounces and more. Instant, accurate and 100% private.
| Unit | Symbol | Converted Value |
|---|
Live Conversion
Values update instantly as you type — in either the From or To field. Bidirectional with no button needed.
All Units at Once
The table shows your value in every unit simultaneously. Click any row to copy it instantly.
Swap Units
Click ⇄ to instantly reverse From and To — bidirectional conversion in one click.
100% Private
All conversion runs in JavaScript in your browser. Nothing is sent to any server.
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📖 How to Use the Weight Converter
Enter a Value
Type the number you want to convert in either input field. Conversion runs live as you type.
Select Your Units
Use the dropdowns to choose From and To units. Use Quick Pair buttons for the most common conversions.
See All Units at Once
The All Units table shows your value converted to every available unit simultaneously.
Copy the Result
Click Copy next to the result, or click any value in the All Units table to copy it.
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❓ Frequently Asked Questions
💡 Why Use Our Weight Converter?
Both-Way Live
Edit either field for instant conversion in both directions — no separate reverse tool needed.
All Units Table
See every unit at once — scan and copy any value without repeating the conversion.
One-Click Swap
Reverse From/To with one click — saves time when converting back and forth.
Quick Pairs
Common conversion pairs as one-click shortcuts below the main converter.
Zero-Upload Privacy
Runs entirely in your browser — nothing sent to any server.
Free, No Account
All units, unlimited use — completely free. No sign-up, no watermarks.
📚 Reference — Weight Conversion Factors
Common Conversions
Popular queries: kg to lbs pounds to kg stone to kg weight converter
| From | To | Factor / Formula | Note |
|---|---|---|---|
| 1 kg | 2.20462 lb | × 2.20462 | Metric to imperial |
| 1 lb | 0.453592 kg | × 0.453592 | Exact definition |
| 1 stone | 6.35029 kg | × 6.35029 | 14 lb = 1 st |
| 1 oz | 28.3495 g | × 28.3495 | Avoirdupois ounce |
| 1 metric tonne | 1,000 kg | × 1000 | 1 t = 1,000 kg |
| 1 troy oz | 31.1035 g | × 31.1035 | Precious metals |
| 1 carat | 0.2 g | × 0.2 | Gemstones |