FLOWCAL Enterprise is the flagship of Flow-Cal, Inc.’s product offerings for gas and liquid measurement software applications. It was developed as a corporate solution for the most demanding system requirements.



FLOWCAL's Client/Server gas and liquid measurement software is designed for growing companies with multiple users, or for companies who want to focus on a single database.



The Application Management Portal (AMP) is a central console designed to provide insight and management of the behind-the-scenes FLOWCAL infrastructure for IT personnel.



FcDataBoss is a stand-alone data management utility that complements our FLOWCAL suite of products by managing the import, export and purging of FLOWCAL data directly from the Oracle database.



TESTit provides today's measurement technician with an advanced progression of automation tools, which manage gas and liquid meter inspection and calibration results, testing and sample schedules, and conduct field calculations for flow rate and equipment sizing. Flow-Cal designed TESTit as a solution to the software needs of field personnel. Whether using the stand-alone application or the server version fully integrated with FLOWCAL, TESTit provides measurement departments with an automated means of integrating the needs of both office and field personnel.



PROVEit is designed as a comprehensive, integrated software package conforming to American Petroleum Institute (API) guidelines as contained in Chapter 12, Section 2, Part 3 (“Proving Reports”) of the current Manual of Petroleum Measurement Standards. Using the latest API tables and report formats, PROVEit provides a step-by-step approach to ensure compliance with industry standards.



CALCit is an easy to use application designed to assist field and office personnel with gas and liquid flow measurement calculations. This application uses the latest industry standard calculations allowing the user to perform spot calculations for gas volume, plate size, and liquid correction factors. CALCit assists in the validation of other systems with the ability to view, save, and print the results of multiple calculations based on different input values.



PYCit is a comprehensive and integrated software package that is based upon the American Petroleum Institute's (API) Chapter 14 - Natural Gas Fluids Measurement, Section 6 - Continuous Density Measurement. This application was designed to calculate and manage a company's density meter proving information and employs the latest API algorithms for the calculation of the density meter factor.



Our FLOWCLOUD hosting solution ensures your measurement applications are hosted in a reliable, highly secure and fully dedicated cloud environment with low upfront costs and worry-free maintenance. For companies that may not have the IT infrastructure, technical staff or budget required to operate in-house, FLOWCLOUD offers a cost effective means for the same, dependable Flow-Cal suite of products.


What's New

Flow-Cal Ranks Top Ten Largest Houston Area B2B Software & App Developers

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Announcing 17th Annual Flow-Cal Users Group

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Flow-Cal President Appointed Chairman of UHCL Advisory Board

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Flow-Cal Users Group

October 24 - October 27

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F100: Fundamentals of FLOWCAL

November 07

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FL101: FLOWCAL Enterprise Liquids Fundamentals

November 08 - November 09

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Tracking Liquids

The growth in unconventional oil and gas for upstream and midstream companies is well documented. But that growth has extended to service and supply companies for these operators.

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Navigating the Petroleum Measurement Perfect Storm

A “boom paradox” is creating the perfect storm in liquids hydrocarbons measurement. Baby boomers hired during an earlier peak in the industry are retiring.

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Measurement Automation: Key in Optimizing Performance

Oil and gas measurement automation software applications are arriving on the scene just as the industry is in the midst of substantial changes in operating strategies.

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17th Annual Flow-Cal Users Group

October 24-27, 2016 | San Antonio, TX

Plan to attend the premier event for Flow-Cal users around the globe! Now in its 17th year, no other conference compares to the Flow-Cal Users Group’s unique blend of measurement, innovation and education. This year’s event will be held on October 24-27, 2016, in the colorful and cultural city of San Antonio, Texas.


Operating an advanced system to its full potential requires properly trained individuals. That’s why application training is so important, especially in today’s burgeoning technological environment. FLOWCAL University offers a variety of training courses for all levels of experience, including tips and time-saving techniques to maximize productivity and get the most out of your software investment.


We believe it is important for our clients and partners to have an active voice in the functionality and future development of
Flow-Cal measurement applications. The FAB-8 Directors hold quarterly sector meetings to identify and prioritize technologies, best practices, and strategies that are critical to each industry sector. We encourage participation and invite the user community to attend these meetings.

Flow-Cal, Inc. and the American Petroleum Institute

The American Petroleum Institute (API) has joined forces with Flow-Cal to develop, market, and support the API MPMS Ch. 11.1 standard (Temperature and Pressure Volume Correction Factors for Generalized Crude Oils, Refined Products, Special Applications, and Lubricating Oils) and its complimentary suite of electronic equations and software tools.


The FLOWCAL University training webinars are an excellent resource for product training. Complimentary to our users, FLOWCAL University presents monthly training tutorials on specific features and functions within our applications.

TESTit 3: Form Configuration, File Imports-CSV & TIDX

November 30, 2016 | 11:00 a.m. CST

PROVEit 9: Exceptions & Approvals

January 25, 2017 | 11:00 a.m. CST

Product Management New Features

February 8, 2017 | 11:00 a.m. CST


The Flow-Cal Story

Flow-Cal is the recognized leader in gas and liquid hydrocarbon measurement software, pioneering new and innovative ways to measure gas and liquids. Flow-Cal’s history, core values, and corporate culture have made Flow-Cal a leader in the measurement industry.