Practical mechanical engineering data, formulas, and design tools used by engineers worldwide
RoyMech provides a comprehensive engineering reference data covering mechanical, electrical, mathematical, physical and chemical principles. The site includes practical data, formulas, tables, material properties and design guidance used by engineers in real-world applications.
Calculate weld strength, throat size, and load capacity for fillet and butt welds used in structural and mechanical design.
Tools for bolt torque, preload, stress, and joint analysis based on standard fastener properties and engineering formulas.
Reference values for static and kinetic friction between common engineering materials, used in design and calculation.
Metric and imperial thread dimensions including pitch, diameter, and tolerances for bolts, screws, and fasteners.
Standard flange sizes, bolt patterns, and pressure ratings for piping and mechanical systems.
Dimensions and properties of structural steel sections including beams, channels, and angles for engineering design.
RoyMech is a long-established engineering reference website originally created by Roy Beardmore. For over 20 years, it has provided reliable technical data and design guidance for engineers, designers, and students worldwide.
The site covers materials, manufacturing processes, machine design, and engineering calculations, offering practical and accessible reference information for real-world applications.
RoyMech is widely used as a trusted source of engineering reference data, supporting both professional design work and engineering education.
Brunel an English Engineer at the heart of many of the key building projects of the British industrial revolution. He built the Great Western Railway from Bristol to London and also developed powerful steamships. He also built the Clifton suspension bridge in Bristol and the first tunnel under the River Thames.
da Vinci, by all accounts, was good at a few things - painting, sculpting, architecture, science, music, mathematics, engineering, invention, anatomy, geology, astronomy, botany, writing, history, and cartography. The usual. His engineering concepts were unfathomable at the time and still carry about an air of magic with them today - flying machines, a type of armoured fighting vehicle, concentrated solar power, an adding machine, and the double hull. Few of which were feasible then, but which are central to how we live today.
Arguably at the top of the list of greatest engineers is Nikola Tesla. He was Serbian, and moved to America at the age of 28 to work with Thomas Edison. Tesla is perhaps one of the most underrated electrical engineers, and didnt receive credit for a lot of his inventions. Theres no doubt that he had a huge influence on society, though. His inventions include the induction motor, 3-phase electricity, fluorescent lighting and the Tesla coil. He also developed the AC current generation system made from a transformer and a motor.
Engineers are professionals who design, analyse, and build machines, systems, and structures to meet practical needs while balancing safety, efficiency, and cost.
Engineering combines scientific principles with practical experience to solve real-world problems across industries including energy, manufacturing, transportation, and infrastructure.
Access formulas, tables, and calculators used in real engineering design.