SurveyTools

SurveyTools brings the familiar methods of ship cargo quantity calculation (draft survey) into a clean, mobile form. Convert petroleum quantities with ease: from observed volume through temperature correction (CTL/VCF) to the standard volume at 15 °C, and on to masses and a range of volume units — from metric tons to barrels and gallons. Enter or derive the density in several ways, and pick the ASTM product group with just a couple of taps.

Also included is a wedge calculation for examining residual quantities at the bottom of a tank, along with interpolation tools (linear, one-way and two-way) for reading tables. Everything runs fast and reliably right on your phone, even offline — and the values you enter are kept from one session to the next.

A clear interface, light and dark themes, and adaptable settings make calculating effortless. An ideal companion for studying the subject, practising and getting familiar with the methods.

Note: SurveyTools is intended for educational and recreational use and is not a certified instrument. See the Terms of Use for details.