Where Calcs.com came from
Calcs.com was founded in 2016 by Chris Borzillo and Steven Robinson. Chris had watched structural engineers lose hours jumping between different tools just to finish one design, and Steven knew software could fix it. What started as a fix for one frustrating part of the job is now used by engineers in more than 80 countries.Transparent by design
One of our philosophies at Calcs.com is to be transparent. We don’t want to be a black box. You’ll see every step of the calculation, and you can go deeper: click on any label or result (for example, shear design or shear reduction factor) to see a description, the reference we use, and the equation we’re applying. This is available across almost every step of our calculations.
To learn how we build, test and verify every calculator, read Our Quality and Transparency Promise.
What you can do with Calcs.com
From running code-compliant calculations to linking loads and exporting reports, see What You Can Do with Calcs.com for the features engineers use most.Next steps
Ready to start? Work through the Quick Start Checklist, or check the System Requirements first.In this section
Explore Calcs.com Features
What Calcs.com does for structural engineers, from calculators and load linking to reports, with short video walkthroughs of each feature.
Understand How Calcs.com Works
How Does Calcs.com Work?
Check System Requirements
What you need to run Calcs.com: any internet-connected computer, tablet or phone, with no install.
Our Quality and Transparency Promise
Apply Engineering Judgment to Calcs.com Results
Calcs.com makes calculations transparent and reusable. The engineer stays accountable for the design.
ClearCalcs Is Now Calcs.com
ClearCalcs became Calcs.com in 2025. Same product, same team, new name.