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Time Converter

Convert between milliseconds, seconds, minutes, hours, days, weeks, months, and years.

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Length Converter

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Unit Converter

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Time Conversion for Engineers

Time conversions are used constantly in petroleum engineering: well test durations, production reporting periods, decline curve time steps, and operational scheduling all require converting between different time units. This tool uses standard definitions: 1 year = 365.25 days (Julian year), 1 month = 30.4375 days (1/12 of a Julian year).

All calculations run entirely in your browser. Built by Groundwork Analytics. info@petropt.com.

Disclaimer: Uses 1 year = 365.25 days, 1 month = 30.4375 days. Groundwork Analytics assumes no liability for decisions made based on these results.