Davemi ToolsUnit Converter
Convert between 100+ units across 13 categories. Instant, accurate, works offline.
1 Meter = 1 Meter
All conversions from current value
About this converter
This unit converter covers 13 measurement categories with over 100 individual units. It handles standard linear conversions (multiply by a factor), offset-based conversions (temperature), and inverse relationships (fuel economy in L/100km). All math runs in your browser — nothing is sent anywhere.
Supported categories
Frequently Asked Questions
How accurate are these conversions?
All conversions use internationally recognized conversion factors with full floating-point precision (15+ significant digits). Results are displayed with up to 10 significant digits for practical use.
Does this tool work offline?
Yes. Once the page loads, all conversions run 100% in your browser using JavaScript — no internet connection or server needed. You can bookmark it for offline use.
What unit categories are supported?
Length, Weight/Mass, Temperature, Area, Volume, Speed, Time, Digital Storage (Data), Energy, Pressure, Frequency, Fuel Economy, and Angle. Each category includes metric, imperial, and other common units.
How does temperature conversion work?
Temperature uses offset-based formulas rather than simple multiplication. Celsius to Fahrenheit: °F = °C × 9/5 + 32. Celsius to Kelvin: K = °C + 273.15. The tool handles these special formulas automatically.
Why does my result show scientific notation?
Very large (>10¹⁵) or very small (<10⁻¹⁰) numbers are displayed in scientific notation (e.g., 1.5e+20) for readability. This typically happens with extreme conversions like nanometers to kilometers.
Is data stored using base-2 or base-10?
Our data/storage conversions use binary (base-2) values: 1 KB = 1024 bytes, 1 MB = 1,048,576 bytes, etc. This matches how operating systems and programming languages report file sizes.
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