Engineering
Calculators
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Professional-grade tools for heat transfer, thermodynamics, and fluid mechanics. Powered by Fortran computation engines for accuracy engineers demand.
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Change the sliders below to see thermal resistance, heat transfer rates, and temperature gradients compute in real-time.
1. Input Parameters
2. Computed Thermal Results
Industry Standard Solvers
Our most frequently used professional tools, featuring detailed reports, charts, and verification curves.
Shell-and-Tube HX Design
Determine required heat transfer area, pass arrangements, F-factor correction, and pressure drop. Validated against ASME and TEMA guidelines.
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Pipe Flow & Pressure Drop
Calculate Darcy friction factor, Moody diagrams, and head loss in piping systems. Supports Colebrook-White and minor loss factors.
Launch Calculator โExplore Our Engineering Tools
Comprehensive calculators covering the core disciplines of thermal and fluid engineering.
Heat Transfer 12 calculators123 runs
Compute conduction through walls, cylinders, and spheres. Analyze convection, radiation, fins, and heat exchangers with accurate engineering correlations.
Fluid Mechanics 8 calculators13 runs
Calculate pressure drop, Reynolds number, friction factors, and flow properties. Analyze pipe networks, open channel flow, boundary layers, and compressible flow systems.
Thermodynamics 3 calculators50 runs
Analyze power cycles (Rankine, Brayton, Otto, Diesel), refrigeration systems, steam properties, and energy balances for engineering systems.
Engineering Tools 3 tools14 uses
Quick-access tools: unit converter, dimensionless numbers calculator, material property database, and interactive reference charts.
Blog & Tutorials
In-depth articles, step-by-step tutorials, and practical guides on thermal engineering concepts with worked examples.
Built for Engineers, by Engineers
Designed to deliver the accuracy and usability that engineering professionals expect.
Fortran-Powered
Calculations run on compiled Fortran programs โ the gold standard for numerical computation in engineering.
Verified Accuracy
Results validated against textbook examples and established engineering correlations. View benchmarks โ
Visual Results
Interactive charts, temperature profiles, and wall diagrams make results intuitive to interpret.
100% Free
All calculators are completely free. No signup required, no feature gates, no limitations.
Engineers Search by Application
Practical calculators organized by real-world engineering problems โ not just textbook subjects.
HVAC Pressure Drop
Duct and chilled water pipe friction losses.
Launch App โHeat Exchanger Sizing
Industrial equipment with fouling and correction factors.
Launch App โInsulation Thickness
Critical radius and heat loss for steam pipelines.
Launch App โPump Head Loss
Total dynamic head and pumping power requirements.
Launch App โMetal Cooling Time
Quenching and annealing transient temperature prediction.
Launch App โBlower Flow & Pressure
High-volume ventilation duct sizing and blower power.
Launch App โRefrigeration COP
Chiller performance, EER, and heat rejection rates.
Launch App โSteam System
Plant steam networks with IAPWS-IF97 accuracy.
Launch App โRun Calculations Locally
All 30 numerical solvers are built on open Fortran 90 source code. View the code, understand the algorithms, compile and run locally on your own machine with sample input files.
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Explore our growing library of Fortran-powered engineering calculators โ from heat conduction to open channel flow.
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