Civil Engineering Calculator
Drainage, earthwork, and hydraulic design — code-aware, fast.
EngineSuite handles the civil-design math that eats your week: pipe flow with Manning's equation, drainage area runoff, earthwork volumes, and more — with an AI assistant that explains the assumptions behind every number.
What you get
Hydraulic & drainage
Manning's equation, rational-method runoff, and pipe-flow checks with imperial and metric units.
Earthwork volumes
Cut/fill and grading volumes with clear breakdowns for client review.
Site-submittal PDFs
Branded reports formatted for municipal submittal and design review.
Unlimited calculators and AI. Pay only when you need a stamped PDF.
Every result tells you the exact clause behind the number.
Your firm's logo, project info, and citations — one click.
Frequently asked questions
Does it handle stormwater design?
Yes — rational-method peak flow and pipe sizing with Manning's. Detention pond routing is on the roadmap.
Is EngineSuite free for students?
Yes. Students and EITs with a valid academic or professional email get free access to every calculator and the AI assistant. You only pay if you need a stamped PDF report.
Can I export branded PDF reports?
Yes. Every calculation can be exported as a one-click branded PDF with your company logo, name, and project metadata. Pro plans include unlimited exports.
Try it on your next project
Sign up free, run a calculation, and see the code citations for yourself.