iPhone Screenshots


"Oil Tank Gauge" is an easy to use, free app designed to help crude oil haulers, water haulers, and pumpers who work around tanks in the oilfield and need a way to simplify tank calculations. With this app you will calculate volumes of oil or water in tanks, and legal weight loads with a few swipes of your thumb. Leave your dumb calculator in the glove box and pitch the gravity charts out the window!


•The “Load Calculation” screen determines how many barrels of oil you can legally load into your tanker. Just input a weight in pounds (supports 5000-100,000 pounds) into the “Available to Load” field. Next use the picker wheel to select the oil’s specific gravity (supports specific gravities of 15-74) into the “Gravity of Oil” field. "Oil Tank Gauge" then automatically performs all calculations to provide you with the number of “Barrels to Load”.

•The “Tank Calculation” screen determines the total barrels of oil or water in a tank or the total number of barrels removed from a tank. Use the picker wheel to select your tank size in the “Tank Size/Calc” field. Next use the picker wheel to input the top gauge of your tank into the “Top Gauge” field and the bottom gauge of your tank into the “Bottom Gauge” field. "Oil Tank Gauge" then automatically performs all conversions from feet to inches and uses the correct tank strapping calculation to provide you with the number of “Total Barrels”.

•The “Settings” screen is preprogrammed with the most popular tank sizes found in the oilfield (250B, 300B, 400B, 500B, 535B) along with the proper strapping calculation for each tank. You may also edit any of the strapping calculations to your preference and the app will retain this change and implement the change into future calculations. In order to serve various needs, two blank fields have been provided so you can input other tank sizes and strapping calculations.

What’s New

Version 1.1

Per a user's request, widened the calculation range on the Settings screen to 1.0 to 6.0 which allows for a 210 bbl tank with a strap value of 1.16.

Ratings and Reviews

4.4 out of 5
11 Ratings

11 Ratings

Gary at BML ,

Gary at BML

I use this app constantly. I like how you can change tank sizes, different calculations, but it just makes doing your ticket a breeze.

Google9647 ,

Must have app

This is the best app for oil tank gauging if you haul crude oil. Very easy to use.
Other apps I have tried are more complicated to use.

Jrtyungh ,


Wast of a $1 I thought it be better. Just take your gravity an add 131 it almost the same

App Privacy

The developer, Symons Software Solutions LLC, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like