PIPECALCULATORS
25 years of field experience serving pipe fitters, workshop teams, engineering offices and technicians
Explore ToolsPIPE FLOW - Logiciel de conception de tuyauterie 3D
Conception 3D complète de la tuyauterie, fichiers de fabrication et suivi des soudures
🌍 Used by Professionals in 78+ Countries
France35.2%
United States17.8%
India4.9%
Germany2.9%
Canada2.5%
Indonesia2.0%
Singapore1.9%
Poland1.7%
United Kingdom1.7%
Belgium1.6%🛠️ More Than a Trade — A Helping Hand
In the tough times we're all going through, it's more important than ever to stick together and rebuild solidarity. We won't make it alone in our corners — but together, by sharing what we have that's most valuable: our knowledge.
The Strength of the Collective
This site is only 2 months old, yet you're already present in over 78 countries. That proves one thing: no matter the distance or the crises, we speak the same technical language.
We all have something to learn from each other.
From the young welder, pipefitter or boilermaker starting out with courage,
to the supervisor in the middle of a shutdown,
to the company owner carrying his teams forward.
And me first — I have 25 years in the field and 10 years in the office, but I still have everything to learn from each and every one of you.
A Debt of the Heart
The trades of welding, pipefitting and boilermaking fed my family for years. I owe them everything. Today, sharing these tools and my experience is my way of giving back what I was given. My contribution so that no one gets stuck on site without an answer.
Passing It On to Keep Going
Passing down knowledge is the thread that connects us, generation after generation. In a world that isolates, pipecalculators.com wants to be a bridge — a space where we help each other, because that's just common sense.
"Knowledge is only worth something when it's shared. Now more than ever."
Thank you all, wherever you are in the world. Let's be proud of our hands and stay united. 🤝
🏆 Top 5 Calculators
Instant 3D Results
Real-time visualization. Change parameters, see results immediately in interactive 3D.
Workshop Accuracy
Formulas from 25 years of real field work. DN8 to DN1200, 3D and 5D radii. No theory, just results.
PDF Export
Generate professional documentation with 3D view, input data, results and complete formulas.
Professional Pipefitter Calculator - Free Pipe Fitting Tools
Welcome to PIPEFLOW, your free professional pipefitter calculator toolkit. Our comprehensive pipe fitting calculator suite helps pipefitters, welders, and fabricators calculate complex pipe runs with precision and speed. Calculate pipe angles, offsets, and multipoint piping layouts with interactive 3D visualization. Built by professionals with 25 years of field experience, our tools are designed for real-world workshop applications.
Why Choose Our Pipefitter Calculator?
Unlike theoretical tools, this pipefitter calculator is built from decades of hands-on experience in industrial piping fabrication. Every formula has been tested in real workshop conditions across refineries, chemical plants, and manufacturing facilities. Our pipe angle calculator handles everything from simple 2D offsets to complex 3D multipoint routing, giving you accurate cutting lengths, elbow angles, and material lists in seconds. The interactive 3D visualization lets you verify your layout before fabrication, reducing costly errors and material waste.
Free Pipe Calculation Tools for Professionals
- Multipoint Piping Calculator - Plan complex pipe runs through multiple points with automatic angle calculations and LSP (Longueur Sans Perte) generation
- Pipe Angle Calculator - Calculate precise angles for any pipe configuration with real-time 3D preview
- Rolled Offset Calculator - H+DEP+45° calculations for 3D offsets with flat assembly capability
- Pipe Saddle Layout Calculator - Simple and S-offset configurations for beam clearance
- Pipe Fitters Calculator - Mitered elbows, 3-point piping, and tangent elbows with weight calculations
- DESP/PED Calculator - European pressure equipment directive compliance checker for categories I to IV
- Hydraulic Calculator - Flow rate, pressure drop, and velocity calculations for fluid systems
Industry Standards & Professional Accuracy
Our pipe fitting calculator tools follow internationally recognized standards to ensure professional-grade accuracy. All elbow dimensions comply with ASME B16.9 (American Society of Mechanical Engineers standard for factory-made wrought steel butt-welding fittings), EN 10253-3 (European norms for butt-welding pipe fittings), and NF EN 10217-7 (welded steel tubes specifications). Flange calculations follow EN 1092-1 standards, covering PN ratings from 6 to 400 bar.
Whether you work with DN8 (1/4") to DN1200 (48") pipe sizes, our pipefitter calculator supports both metric and imperial measurements. Choose between 3D radius (1.5 x DN) and 5D radius (2.5 x DN) elbows, select from standard wall thicknesses (Schedule 10 through XXS), and work with various materials including carbon steel (P265GH, P235GH), stainless steel (304L, 316L), and specialty alloys. Every calculation includes material weight estimates based on actual material densities.
Features That Set Us Apart
All tools are 100% free with no registration required. Export professional PDF reports complete with 3D renderings, calculation details, and material nomenclatures formatted to industry standards (ISO, ID, QTE, ND, DESCRIPTION, MATERIAU). Generate DXF files for direct CAD import, or export CSV data for spreadsheet analysis. The interactive 3D viewer lets you rotate, zoom, and inspect your piping assembly from any angle. Add, remove, or modify points in real-time and watch the pipe angle calculator instantly update all dimensions.
Perfect for pipe trades professionals worldwide - from fabrication shops and field installation crews to engineering offices and training schools. Our tools have been used in petrochemical refineries, food processing plants, pharmaceutical facilities, power generation stations, and industrial manufacturing sites across five continents. Join thousands of pipefitters, welders, and engineers who rely on PIPEFLOW for accurate, professional pipe fitting calculations.
Our Calculators
Interactive 3D tools for everyday piping work
🎓 Free for Schools & Training Centers
PIPEFLOW is completely free for educational use. Teachers, trainers, and students can use all tools without any restrictions. Built by a pipe fitter with 25 years of field experience to help the next generation.
Frequently Asked Questions
A pipefitter calculator is a professional tool designed to help pipe fitters, welders, and fabricators calculate complex pipe configurations including angles, offsets, rolled offsets, and multipoint piping layouts. Our pipefitter calculator provides instant 3D visualization and follows industry standards like ASME B16.9 and EN norms. It eliminates manual trigonometry calculations and reduces errors in pipe fabrication by providing accurate cutting lengths, elbow angles, and material quantities.
Yes, all our pipefitter calculator tools are 100% free with no registration required. You get full access to every calculator including PDF export, 3D visualization, and DXF export features. We believe professional pipe fitting tools should be accessible to everyone in the pipe trades, from students learning the craft to experienced professionals working in refineries and industrial plants worldwide.
Our pipefitter calculator suite supports multiple international standards including ASME B16.9 (American standard for pipe fittings), EN 1092-1 (European flange standard), NF EN 10217-7 (welded steel tubes), and DESP/PED 2014/68/EU (pressure equipment directive). All calculations follow professional workshop practices and have been validated through 25 years of field experience in industrial piping fabrication.
Yes, all our pipe fitting calculator tools are fully responsive and work on smartphones, tablets, and desktop computers. The 3D visualization adapts to your screen size, and you can rotate, zoom, and interact with pipe models on any device with a modern web browser. Whether you're in the shop, in the field, or in an engineering office, you can access our tools anytime.
No account required! Simply visit PIPECALCULATORS, choose your tool, enter your measurements, and get instant results. You can export PDF reports and DXF files without signing up. We respect your privacy and don't collect personal data. All calculations are performed in your browser, ensuring your project information stays private.
Our pipefitter calculator supports a comprehensive range of pipe sizes from DN8 (1/4 inch) to DN1200 (48 inches). You can work with both 3D and 5D elbow radii, various wall thicknesses (schedules from 10 to XXS), and multiple materials including stainless steel (304L, 316L), carbon steel (P265GH, P235GH), and specialty alloys. The calculator automatically adjusts dimensions and weights based on your selections.