Skip to content
← All tools

Standalone tool

Calc

Calculators for quick structural calculations, estimating a solution, checking assumptions and comparing variants. Calc shows the calculation procedure and the formulas used and, depending on the tool, also charts and summaries of results.

Input data and the current result of the STEEL-UMAX calculator in the PRO version

Example: the steel beam deflection calculator (STEEL-UMAX) in the PRO version.

How you work in Calc

From input data to a comparison of variants in five steps

Based on the data entered, the calculator determines the result and shows the successive stages of the calculation. In selected tools the result can also be presented on charts and compared with other variants. The functions available may differ in the other calculators.

Example: the steel beam deflection calculator (STEEL-UMAX) in the PRO version.

  1. Step 01

    Enter the input data

    The parameters and assumptions needed for the calculation are specified first. Based on them, the calculator determines the result for the selected problem.

    Input data of the steel beam deflection calculator
  2. Step 02

    Read the main result

    The calculator gives the calculated value, the assessment of whether the condition is met or the selected solution. The most important auxiliary values are shown next to the result.

    Main result with the selected section and the deflection compared with the limit
  3. Step 03

    Trace the calculation procedure

    The calculator shows the formulas used, the substitutions and the intermediate results. The successive stages explain where the final result comes from.

    Part of the calculation procedure with formulas and substitutions
  4. Step 04

    See the charts

    Charts show how the calculated quantities vary. The range of charts depends on the calculator.

    Chart of the deflection and the permitted value as a function of the beam length
  5. Step 05

    Compare variants

    Summaries make it possible to compare the results of different variants or calculation cases. The range of summaries available depends on the calculator.

    Selected sections IPE 240, UPE 240 and RP 300x100x4 and parts of the tables of results that satisfy and do not satisfy the SLS

Areas of calculation

Explore the available packages

Calc groups the tools by area of application. Each package includes calculators for specific structural or geotechnical problems. The current scope of the packages is shown below. The individual calculators are launched in the hub.

Steel structures · STEEL

Calculations for steel members

  • Critical moment
  • Critical force
  • Deflection
  • Flexural buckling resistance
  • Lateral-torsional buckling resistance
  • More calculators — coming soon

5calculators

Reinforced concrete structures · RC

Calculations for reinforced concrete members

  • Cracking moment
  • Crack width
  • Shear resistance
  • Deflection
  • Bending resistance
  • More calculators — coming soon

5calculators

Masonry structures · MAS

Calculations for masonry members

  • Concentrated load resistance
  • Vertical load resistance
  • Bending resistance
  • More calculators — coming soon

3calculators

Geotechnics · GEO

Geotechnical calculations grouped by type of problem

  • Bearing capacity of the ground under a shallow foundation
  • Settlement of a shallow foundation
  • More calculators — coming soon

2calculators

Free and full version

Try it before deciding on a licence

The free version (FREE) lets you see how the calculator works and how it presents the results. You can trace the calculation procedure, the formulas used and the charts, if the calculator provides them. Changing the input data and access to selected advanced functions are limited. The extent of the limits depends on the calculator.

The full version (PRO) provides the full range of input data and functions supported by the calculator. In selected tools it also includes selecting a solution that satisfies the assumed conditions — for example the lightest steel section or the reinforcement with the smallest mass.

How it works

The browser for work, the server for calculations

Calc runs in the browser, with nothing to install. The data you enter is sent to the server, which performs the calculations.

In the calculator you can read the result and trace the calculation procedure. The charts and comparison summaries available depend on the tool.

An internet connection is required to perform the calculations.

BrowserInput dataCalculation resultsCalculation procedureInput dataCalculation resultsCALC serverCalculation

Questions and answers

Key points before you start

Does Calc replace an FEM model?

No. Calc lets you perform calculations for a specific structural problem much as you would by hand, showing the formulas and the successive stages. It helps to estimate a solution, check the assumptions made, compare variants or independently verify a selected result. It supports design work but does not replace an analysis of the whole structure.

Can Calc select a section or reinforcement?

Yes. In selected calculators the PRO version can select a section or reinforcement that satisfies the assumed conditions. Depending on the tool, this may be, for example, the lightest steel section or the smallest required reinforcement. The available modes are described in each calculator.

Can I try the calculators without an account?

Yes. The free version is available in the calculator hub without creating an account and without entering a card.

How does the free version differ from PRO?

The free version lets you see how the calculator works and trace the calculation procedure for a limited range of input data. PRO provides the full range of data and modes supported by the tool. The detailed limits of the free version depend on the calculator.

Does one licence cover all Calc calculators?

No. One package covers all the calculators that belong to it. Access to the other packages is licensed separately.

Can I use Calc results in design documentation?

Calc is a tool that supports structural calculations. Before the results are used in design documentation, a person holding the appropriate professional authorisation and qualifications should verify the input data, the calculation assumptions and the results obtained.

Try Calc in practice

The free version opens in the browser without creating an account. For full versions and licences, please contact us.