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Field tools and calculators

Free calculators for planning site work: concrete and excavation volumes, rebar weight, equipment productivity and more.

Concrete & Material Calculators

Concrete, asphalt, excavation, and steel estimation tools.

Heavy Equipment Productivity Calculators

Equipment output, fuel, rental, and ownership estimators.

Measurement & Conversion Tools

Fast conversions for site measurements and specs.

Cost & Profit Calculators

Costing, VAT, margin, and break-even planning.

Free construction calculators and unit converters

Every tool here is free, needs no sign-up and works on a phone on site. Each one explains its formula, shows worked examples and, for the converters, a table of common values you can print. They are written for UAE and Gulf projects - metric units, UAE block sizes, imperial gallons on tankers, 5% VAT - and work for projects anywhere.

Frequently asked questions

Are these calculators free?

Yes. Every tool is free to use with no account, and you can embed any of them on your own website with the code under each tool.

How accurate are the results?

The converters use standard conversion factors, so they are exact to the decimals shown. The quantity and cost calculators are planning estimates: check them against your drawings, supplier quotes and engineer before you order.

Do the tools work for projects outside the UAE?

Yes. You can switch between metric and imperial units, and the cost tools let you pick your country, currency and VAT rate.

Can I print a conversion chart?

Yes. Each converter has a printable chart of common values, linked above its table.

Where do I find the equipment for the job?

Each tool links to the matching equipment on EquipmentsFinder, where you contact suppliers directly by phone or WhatsApp, with no commission.

EquipmentsFinder

Need equipment? Have equipment?

Buyers post one request and get quotes from verified suppliers. Suppliers list free and reach active demand.