Pricing

Clear access. No surprise paywalls on math.

Calculators stay free. Sign in when you need conversion. Pro is on the roadmap—we will not invent a checkout before the product is ready.

Free

Everything you need for field computation—no account required.

Available
£0forever
  • 6 live calculators (more on the roadmap)
  • Learning paths and tool guides
  • Field reference library
  • AutoCAD LISP macro downloads
  • Journal articles
  • Runs entirely in your browser
Open Work

Account

Unlock the format converter workspace when you need file export.

Sign in
£0sign in
  • Everything in Free
  • Format Converter workspace
  • CSV import with field mapping
  • Export to GSI, DXF, and related formats
  • Session saved across devices
Sign in

Pro

Credits, higher-volume conversion, and team workflows—designed, not billed yet.

Coming soon
Comingsoon
  • Everything in Account
  • Conversion credits (planned)
  • Team seats (planned)
  • Priority format support (planned)
Browse Work

How conversion access works

The Format Converter page is public so you can see the workflow. Running a conversion requires signing in. We are not charging for conversion yet—account access is the gate while we finish format fidelity and metering.