Engineering Tools
Free Engineering Calculators
Online tools for structural, electrical, mechanical, and manufacturing engineers. Interactive 3D visualization with documented formulas.
Popular Engineering Calculators
Start with our most-used online tools
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Beam Deflection Calculator
Calculate maximum deflection, bending moment, and stress for simply supported and cantilever beams. Includes 3D visualization.
Structural Engineering
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Voltage Drop Calculator
Calculate voltage drop and power loss in electrical circuits. Recommend optimal AWG wire sizes for DC, single-phase, and three-phase systems.
Electrical Engineering
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Gear Ratio Calculator
Calculate gear ratios, output RPM, and torque for gear trains. Includes animated visualization of gear rotation.
Mechanical Engineering
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Material Weight Calculator
Calculate weight and cost for plates, bars, tubes, and pipes in various materials including steel, aluminum, and copper.
Manufacturing & Production
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Pipe Pressure Drop Calculator
Calculate pressure drop in straight pipes using the Darcy-Weisbach equation. Determine flow regime, friction factor, and head loss.
Fluid Mechanics
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Spring Calculator
Calculate spring rate, deflection, and stress for compression and extension springs. Includes animated 3D visualization.
Mechanical Engineering
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Why Engineers Choose Simulyzers
Simple Interface
Enter your values, adjust parameters, and see results instantly.
3D Visualization
Interactive 3D models help you understand and verify your designs.
Documented Methods
Clear formulas, documented assumptions, and standard methods.
Shareable Results
Copy a link with your inputs to share calculations with colleagues.
Works Everywhere
Desktop, tablet, or phone. Same experience on any device.
Learn While You Calculate
Each tool includes explanations, formulas, and links to our glossary.