About Our Engineering Calculators
Our comprehensive suite of structural engineering tools provides accurate calculations for steel design, concrete analysis and much more. All tools are developed according to Eurocode standards and are used by structural engineers worldwide.
Eurocode Compliant
All calculations follow EN 1992, EN 1993, and EN 1998 standards
Free & Open
No registration required, completely free to use
Professional Quality
Used by structural engineers in design practice
Regular Updates
Continuously improved with new features and tools
Steel Design Tools
Professional steel structure analysis and design calculators
Steel Fire Temperature
Calculate fire resistance of unprotected steel structures with interactive temperature simulation. Features Am/V ratio calculation, shadow effects, and detailed temperature-time curves.
Two-Sided Hat Profile
Calculate structural capacities and cross-sectional classifications for two-sided hat profiles. Features Eurocode 3 compliance with detailed geometric property calculations.
Weld Capacity Calculator
Calculate weld capacity and utilization for steel welded connections. Features comprehensive stress analysis with normal force, shear force, and moment combinations using von Mises criteria.
DIN Rod Torque Calculator
Calculate required torque from force or force from torque for DIN threaded rods. Features detailed step-by-step calculations with thread friction, head friction, and geometric parameters.
Steel Profile Calculator
Compare IPE, HEA, and HEB steel profiles for optimal structural performance and weight efficiency. Features moment capacity, deflection analysis, and comprehensive profile comparison across different series.
Transversal Forces - Stiffened Web
Calculate capacity of transversally stiffened webs for vertical forces. Features automatic steel section database integration, web height calculation, and slenderness checks per EC3-1-5.
Transversal Forces - Unstiffened Web
Calculate capacity of unstiffened webs for transversal forces according to EC3-1-5. Features iterative calculation procedure, multiple load types, and steel section database integration.
Concrete Design Tools
Ultimate Limit State calculations for concrete structural elements
Concrete Slab Design
Ultimate Limit State (ULS) moment resistance calculator for concrete slabs. Calculate MRd with detailed step-by-step mathematical derivations and visual aids.
Concrete Beam Design
Ultimate Limit State (ULS) calculator for concrete beams. Calculate moment and shear capacity with detailed step-by-step derivations.
EC2 Concrete Material Parameters
Calculate all concrete material parameters according to Eurocode 2 Table 3.1. Select concrete grade and get fck,cube, fcm, fctm, Ecm, strain parameters, and more with analytical formulas.
Concrete Minimum Reinforcement Calculator
Calculate minimum reinforcement for concrete structures according to EC2 and other standards. Features plates, beams, columns, and gulv på grunn calculations with scenario-based analysis and spacing compliance checks.
Concrete Base Plate
Calculate compressive capacity of concrete base plates with detailed step-by-step calculations. Features effective area determination and steel plate spread calculations per EC3-1-8.
Concrete Dowels
Calculate shear capacity for concrete dowel connections according to Norwegian Betongelementboken. Features comprehensive analysis with distance factors, utilization checks, and interactive geometry visualization.
Concrete Anchorage Length Calculator
Calculate design anchorage length for reinforcement bars according to Eurocode 2 Section 8.4. Features comprehensive bond strength calculations, alpha factors, and detailed step-by-step derivations for tension and compression anchorages.
Concrete Carbon Reinforcement
Carbon Fiber Reinforced Polymer (CFRP) strengthening analysis tools
Concrete Plate - Flexural Carbon Fibre Reinforcement
Calculate carbon fiber reinforcement effects on concrete plates with detailed step-by-step analysis. Features moment capacity calculations, section classification, and CFRP strengthening verification.
Seismic Design
Seismic analysis and design tools according to Eurocode 8
EC8 Seismic Avoidance Criteria
Calculate if seismic design is required according to Eurocode 8 avoidance criteria. Features response spectrum analysis, parameter summary, and interactive visualization with real-time updates.
Structural Analysis Tools
Advanced finite element analysis and structural modeling tools
2D Frame Analysis
Advanced finite element analysis of 2D frame structures using matrix stiffness method. Features interactive displaced shape visualization, D3.js hover tooltips, and auto-loads a 10m simply supported beam test case.
⚠️ Under Development: This tool is currently being improved and may not function properly yet.
Data Processing
Tools for analyzing, clustering, and processing data from CSV files and other sources
1D CSV Clustering
Upload a CSV file, select a column and cluster by numeric values in the column
Productivity Tools
Tools to improve workflow efficiency and document management
Delivery Hub
Advanced document management and delivery organization tool. Organize files by categories and subcategories, set folder paths, copy file paths, split filenames, and manage deliveries with persistence and export/import functionality.
Coming Soon
Beam Design
Steel beam calculators
Column Design
Compression member analysis
Load Analysis
Load combination tools
About These Tools
Professional Quality
Built with the same rigor and accuracy standards used in professional engineering practice. All calculations are based on established codes and standards.
Open Source & Free
Completely free to use with no registration required. Source code is available on GitHub for transparency and community contributions.
Interactive Results
Dynamic charts, step-by-step calculations, and exportable results make it easy to understand and document your engineering decisions.
Continuously Updated
Regular updates with new tools, improved accuracy, and user-requested features. Built by structural engineers for the engineering community.