Where engineering decisions get made and defended
Every formula, code provision, and product rule is visible inside the calculation. Decisions get made, checked, and defended where the work happens, not reconstructed later.
No credit card required · 200+ calculators · All major codes

Used in real structural work, every day
12M
designs done on Calcs.com to-date
80,000
structural engineering projects completed in the last 12 months
200+
standards-aligned calculators covering IBC, AISC, NDS, ACI, AS/NZS, NBCC, and Eurocode
Engineering decisions stall at review time
Engineering work moves forward when a calculation can be checked, traced, and reused. That breaks when the basis of design is split across tools and files.
Calculations are isolated
Spreadsheets, legacy tools, and one-off files
Standards are separate
PDFs, folders, and paywalled portals
Product data is elsewhere
Catalogs, submittals, and email threads
The trace is missing
Load cases, combinations, governing checks, and code clauses are not tied to each result
Changes are hard to audit
Logic is spread across cells, hidden tabs, and copied workbooks
Old clauses keep circulating
Standards updates rely on manual spot checks across copied files
See how Calcs.com keeps the basis of design inside every calculation.
No credit card required
Put the basis of design inside the calculation
Calcs.com keeps inputs, formulas, and code references together so reviewers can inspect the logic before they rely on a result.
Load changes propagate automatically
When a load changes upstream, every connected member updates. No manual rechecking downstream.
Inspectable calculations
See every input, formula, and reference during review
Standards applied in context
Code provisions are tied to the checks that use them
Proof teams trust Calcs.com in real work
The software has made us a minimum of 30% more productive. It's eliminated at least 30% of the workload.
Donovan Rae
Senior Project Manager, Lumos & Associates

The load linking feature is huge for us. Before, we had to use separate calculators and manually input everything.
Noah Diaz
Engineering Design Coordinator, PWI
We had 400 engineers using the tool within the first month. As of early 2025, we have 2,500+ users.
Rick Sebok
Chief Marketing Officer, Atlas Tube
How engineers, firms and manufacturers use Calcs.com
A calculation stays checkable from first pass through final review - with the references attached.
01
Run
Start with a standards-aligned check and clean inputs
02
Review
See the governing formula and code clause before you rely on the result
03
Reuse
Carry the basis of design forward without rebuilding the calc
Built for engineers, manufacturers and standards bodies

Structural engineers
Produce review-ready calcs with inputs, formulas, and references in one place
Structural engineers

Engineering teams
Keep review standards consistent across projects, people, and offices
Engineering teams

Manufacturers
Get technical product data applied correctly by putting it inside the calc
Manufacturers

Standards bodies
Support consistent application with traceable, in-context provisions
Standards bodies
Frequently asked questions
What is Calcs.com?
What codes and standards does Calcs.com support?
How is Calcs.com different from spreadsheets or legacy calculation software?
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Make decisions you can defend at review time
Share a calculation with the basis of design attached - inputs, formulas, and code references alongside the result.
No credit card required
30-day money-back guarantee on paid plans







