Embeddable Calculators (Free)
Add professional calculators to your website with a simple iframe. Copy the code snippet below and paste it into your HTML. No sign-up required.
Popular Embeds
Estimate concrete volume for trench footings, pad footings, and round post holes — plus bags and cost.
Calculate concrete volume for slabs, footings, and columns with metric and imperial support and bag estimator.
Calculate rebar weight per metre, total weight, and tonnes with diameter and length.
Convert rise and run into pitch ratio, degrees, and slope instantly with metric and imperial support.
Calculate rafter length using pitch, roof span/run, overhang, and optional birdsmouth allowance. Metric-first.
Construction (Recommended)
Estimate concrete volume for trench footings, pad footings, and round post holes — plus bags and cost.
Calculate concrete volume for slabs, footings, and columns with metric and imperial support and bag estimator.
Calculate rebar weight per metre, total weight, and tonnes with diameter and length.
Convert rise and run into pitch ratio, degrees, and slope instantly with metric and imperial support.
Calculate rafter length using pitch, roof span/run, overhang, and optional birdsmouth allowance. Metric-first.
Calculate deck stair steps, rise/run and stringer length for 2×10 or 2×12. Metric & imperial.
Calculate how many tiles you need for floors, walls, showers or bathrooms. Supports m², sq ft, cm & mm.
Embedding Guidelines
- Embeds are free for personal and commercial use.
- Please do not remove or obscure the BuildByJai branding in the embed footer.
- For custom integrations or white-label solutions, contact us at jawad@buildbyjai.co.uk.