Enter one value per line. Fractions, scientific notation, time notation, and recognized mixed units are accepted.
Uses the current category and selected units.
Explore all official decimal prefixes from quetta (10³⁰) to quecto (10⁻³⁰), including ronna, ronto, quetta, and quecto.
| Prefix | Symbol | Factor |
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Convert between units of length, weight, temperature, volume, area, speed, energy and more, with precise factors and instant results.
Tip: Results keep full precision internally; the displayed rounding never compounds across conversions.
Convert everyday, scientific, technical, digital, and cooking measurements. See how units relate visually, inspect the formula, convert lists in bulk, and keep custom units—all without uploading anything.
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