Handy calculators and utilities for hobbyists and enthusiasts
These fun engineering tools are created for hobby and amateur use. Perfect for learning, experimenting, and enjoying engineering calculations!
Explore ToolsSelect from our collection of specialized calculators and utilities designed for engineering professionals
Browse and search through all RAL colors with visual previews. Colors are organized by categories for easy navigation.
Calculate bend allowance and bend deduction for sheet metal bending. Supports various K-factor calculation methods.
Calculate weights of structural profiles (I, Z, U, T, H) according to EN/ISO/IS/GOST standards. Collect and summarize multiple profiles.
Compare and convert between hardness scales (HB, HRA, HRB, HRC). Includes detailed explanations of each scale and their applications.
Define workstations and forecast demand to calculate optimal buffer stock. Simulate performance and minimize WIP based on annual demand.
Calculate carbon equivalent values using IIW/CEV or CET methods. Essential for welding assessments and material selection.
Calculate dimensional tolerances using ISO 2768, ISO 13920 standards, and IT tolerance grades (H7, h6, etc.).
Optimize barrel cutting patterns to minimize waste. Calculate optimal layouts for multiple parts from cylindrical stock material.
Generate X̄-R and I-MR control charts from measurement data. Includes Cp/Cpk capability analysis and Nelson rule violation detection.
Tap drill sizes, thread dimensions, and clearance holes for metric (coarse/fine) and imperial (UNC/UNF) threads, plus bolt tightening torque tables.
Estimate arc energy, heat input, and approximate t8/5 cooling time for welding. Supports MMA, MIG/MAG, TIG, FCAW and SAW efficiency factors.
Estimate filler metal, shielding gas, arc time, labor, and total weld cost from joint geometry. Supports fillet, V-groove, and square butt joints.
Create Welding Procedure Specifications per EN ISO 15614 with live preview, run parameter tables, JSON save/load, and print-to-PDF — in English, German & Hungarian.
We're always adding new fun tools for your projects!
Solution-NG Engineering Ltd (Solution-NG Mérnöki Kft) is dedicated to providing innovative engineering solutions and tools that streamline workflows and improve productivity.
Our suite of specialized calculators and utilities has been developed by engineers, for engineers, ensuring practical functionality and accuracy in real-world applications.
Industry-standard formulas and methods
Instant results for complex calculations
Access tools anywhere, anytime
Have questions or suggestions for new tools? We'd love to hear from you.