Digging things up…
Digging things up…
Convert between joules, kilojoules, calories, kilocalories, watt-hours, BTU and electron volts.
Converters & Calculators
Fast, accurate converters and calculators for units, dates, currencies, timestamps and everyday sums — all running live in your browser.
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Convert Unix timestamps to human-readable dates or turn any date into a Unix timestamp.
Use tool →⇆Convert between length, weight, temperature, volume and data units instantly in your browser.
Use tool →%Calculate percentages three ways — X% of Y, what percentage X is of Y, and percentage change.
Use tool →IVConvert between decimal numbers and Roman numerals instantly — supports 1 to 3999.
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