PipeFlowCalculations.com was founded in 2000 with a clear goal — to make complex fluid mechanics calculations simple and accessible for everyday engineers. What began as a single Venturi tube calculator has grown into a complete platform of online, desktop, and mobile tools used worldwide by professionals, students, and educators in mechanical and process engineering.
The project was created and is continuously developed by Zoran Savović, a mechanical engineer, software developer, and engineering designer. Zoran graduated from the Faculty of Mechanical Engineering, University of Novi Sad, majoring in Hydropneumatic Engineering in 1997. Over more than 20 years, he has combined his technical expertise and passion for programming to design accurate, user-friendly engineering calculators trusted by thousands of users across the globe.
In the early days, PipeFlowCalculations.com hosted only a few Java-based calculators available as online applets. As technology evolved, so did the calculators — transforming into Java Web Start, then into native Windows applications, and finally into modern JSF-based web apps running on a secure cloud platform. This ongoing evolution reflects a single guiding principle: accuracy, reliability, and simplicity in engineering computation.
Early Development: From a Single Calculator to a Growing Platform (2000–2010)
The idea behind PipeFlowCalculations.com was born in August 2000, when I created my first Venturi tube calculator and published it on a free domain, flow.netfirms.com. The simple tool quickly attracted attention from engineers, professors, and students, confirming that accessible and accurate fluid-mechanics calculators could save time and reduce errors in everyday engineering work.
Encouraged by this success, I began developing additional Java applet-based calculators, focusing on practical applications in fluid dynamics, pressure drop, and gas flow. By 2005, the growing popularity of these tools led me to register a dedicated domain, fludy.com, and join professional publisher programs such as GlobalSpec and Google AdSense, allowing the project to become self-sustaining.
In 2006, several new online calculators were launched — including the Pressure Drop, Thermal Energy, and Natural Gas Pipeline calculators. The same year marked the creation of the Heat Power and LPG Flow Rate tools, which expanded the scope beyond pure hydraulics into energy and heat transfer.
Over the following years, the calculators matured with improved interfaces, more precise equations, and verified engineering formulas. By 2010, the website featured a rich collection of online tools and a dedicated discussion forum at forum.pipeflowcalculations.com, where professionals could exchange ideas, report results, and request new features.
What began as a personal project evolved into a trusted online engineering resource — a bridge between theoretical fluid mechanics and practical industrial design.
Calculators and Website Development Over Time (2000–2010)
| Year | Month | Milestone |
|---|---|---|
| 2000 | August | Registered free domain flow.netfirms.com and published the first Venturi tube calculator. |
| 2001 | January | Prandtl probe and Reynolds number calculators published. |
| 2005 | May | Orifice plate calculator published. |
| 2005 | November | Invited to the GlobalSpec publisher program. |
| 2005 | December | Registered fludy.com domain and joined the Google AdSense publisher program. |
| 2006 | January | Pressure drop calculator published. |
| 2006 | February | Thermal energy calculator and Natural gas pipeline calculator published. |
| 2006 | May | Registered pipeflowcalculations.com domain. |
| 2007 | March | LPG piping calculator published. |
| 2007 | April | Air pressure drop calculator published. |
| 2007 | May | Pipe diameter calculator published. |
| 2010 | February | Resistance coefficient K calculator published. |
| 2010 | August | Forum.pipeflowcalculations.com started as a user discussion forum. |
Development Milestones (2011–2020)
| Year | Month | Milestone |
|---|---|---|
| 2011 | April | Gas control valve sizing calculator, Nozzle calculator, and Isothermal gas flow calculator published. |
| 2012 | February | Gas discharge calculator published. |
| 2012 | August | Specific gravity calculator published. |
| 2013 | January | Pipe diameter calculator for Android published. |
| 2013 | May | Reynolds number calculator for Android published. |
| 2014 | January | Registered account on mochahost.com and domain pipeflowcalculation.net. |
| 2014 | April | Combustion energy online calculators published. |
| 2015 | January | Heat power calculator for Android published. |
| 2015 | March | Android calculators redesigned and republished. |
| 2015 | October | Pressure drop, Orifice plate, and Pipe diameter online calculators published. |
| 2015 | November | Venturi tube and Nozzle online calculators published. |
| 2015 | December | Delivery time calculator published. |
| 2016 | June | Java applet converted to Java Web Start application with registration. |
| 2016 | August | Introduced subscription plans for premium access. |
| 2017 | September | Windows desktop version of the calculator suite published. |
| 2019 | January | Redesigned PipeFlowCalculations.com as a JSF web application; deprecated pipeflowcalculations.net domain. |
| 2019 | January | Specific gravity, Heat power, Control valve, and Gas control valve calculators published online. |
| 2019 | January | Reynolds number and LPG flow calculators published online. |
| 2019 | May | Moved to a Virtual Private Server (VPS) for improved performance. |
| 2019 | June | Pipe weight and price calculator published. |
| 2019 | September | Major update: save/open results feature, integrated fluid tables. |
| 2019 | December | Export results to Word and Excel native formats. |
| 2020 | January | Exclusive ad-free online calculators launched — focused design for direct use. |
Recent Developments (2021–2025)
| Year | Month | Milestone |
|---|---|---|
| 2021 | May | Online calculators became usable without an Internet connection (offline mode). |
| 2021 | June | Pipe network analysis calculator published online. |
| 2022 | January | Pump selection calculator published. |
| 2023 | June | Launched new natural gas calculator on pipeflowcalculations.net. |
| 2023 | July | Acquired EV SSL certificate from Sectigo for enhanced site security. |
| 2023 | August | Introduced free trial access for new users. |
| 2024 | February | Added Pipe wall thickness calculator and Pipe material selection feature. |
| 2024 | March | Expanded database with additional pipe standards and surface roughness values. |
| 2024 | April | Introduced Flow in valves – resistance factor calculator. |
| 2024 | July | Pump performance calculator released. |
| 2025 | May | Major website redesign with modern dark theme, improved UX, and responsive layout. |
Developer, Designer and Mechanical Engineer -
Zoran Savović
General
Born in 1973 in Kula, Serbia. I grew up and was educated in Novi Sad.
I graduated from the Faculty of Mechanical Engineering at the University of
Novi Sad, Department of Energy and Process Engineering, majoring in
Hydropneumatic Engineering, in 1997.
Programming
I started doing web design and web programming in the late nineties.
I confirmed my Java programming competencies by obtaining a Java Programmer Certificate.
KNX Programming
I have completed KNX Partner course and obtained KNX Partner status on September 2025.
I practice KNX programming and parametrization for home and building automation with the Schneider Electric Space Logic and Wiser components.
Previous jobs
During my business career, I worked as a Lead engineer for construction of natural gas installations and as a Facility Manager.
I was also member of the project management team responsible for the construction of the Transmission gas pipeline (Interconnector) border of Bulgaria – border of Hungary
Current job
I am currently working at "Schneider electric" as a Facility Manager responsible for operations and maintenance of business premises.
Contact
The best way to contact me is using this form.
During this period, I have developed many custom calculators according to user’s requests. In addition, I have redesigned the web site and the calculator applet several times.