Mobile-first
Lightweight, fast, and reliable on-site.
Advanced configs
Stepped benches, culvert spacing, and field-ready options.
Accurate outputs
Professional-grade calculations for volume and cement requirements.
Culvert support
Calculate volumes and cement with culverts of various shapes and spacing options.
How it works
Enter trench dimensions
Depth, length, base/trapezoid widths, benching, culverts.
Select configuration
Choose options for benches and spacing as needed.
Get results instantly
Volume + cement estimates with clear units.
Built with crews in mind
“We needed a quick, no-nonsense calculator on the job. TrenchCalc saves time every pour.” — Site Engineer
About EngSiteTools
We create simple, accurate, and affordable tools for field engineers, site crews, and small contractors — an underserved community often ignored by enterprise software. TrenchCalc is our flagship; more field-ready utilities are on the way.
Need help?
Email: engsitetools@gmail.com