Free Construction Calculators Hub
Free gravel calculator. Calculate cubic yards, US tons, UK metric tonnes, and 50lb bags for driveways, French drains, and sitework base.
Dedicated Takeoff Calculators
Full-page calculating engines with shape selectors and live material breakdowns.
Concrete Calculator
Calculate cubic yards, cubic feet, and 80lb/60lb bags for slabs, continuous footings, round columns, and foundation walls with live waste margin adjustment.
- ✓ Slab on Grade, Driveways & Sidewalks
- ✓ Continuous Footings & Stem Walls
- ✓ Round Sonotube Columns & Piers
- ✓ Ready-Mix Yardage & Bag Breakdowns
Square Footage Calculator
Multi-room floor plan calculator supporting rectangular rooms, triangle roof gables, and circular features with flooring box allowances and cost per sq ft.
- ✓ Multi-Room Floor Plan Sums
- ✓ Flooring Boxes & Tile Estimating
- ✓ Wall & Ceiling Paintable Area
- ✓ Price per Square Foot Cost Modeling
Gravel Calculator & Material Estimator
Switch between any trade calculator below or bookmark this direct link for your project estimating.
🪨 Gravel Calculator & Aggregate Weight Estimator
Calculate cubic yards, US tons, and metric tonnes for driveways, French drains, and sitework base.
US vs UK Construction Terminology Guide
We work seamlessly with both US CSI MasterFormat and UK/RICS NRM measurement standards.
| US Construction Term | UK / Commonwealth Term | Typical Measurement Unit | Relevant BOQ Service |
|---|---|---|---|
| Drywall / Sheetrock | Plasterboard | Sq Ft / m² | Drywall Takeoff |
| Asphalt Paving | Tarmac / Bitumen Macadam | US Tons / Metric Tonnes | Paving Takeoff |
| Cubic Yards (yd³) | Cubic Metres (m³) | Volume | Concrete Takeoff |
| Lumber / Framing | Timber | Board Feet / m³ | Framing Takeoff |
| Quantity Takeoff (QTO) | Bill of Quantities (BOQ) / QS Take-off | Itemized Bills | BOQ Preparation |
| Cost Estimator | Quantity Surveyor (QS) | Cost Planning | Cost Estimating |
Estimate Your Project Turnaround & Cost
Estimate Your Turnaround & Project Scope
Select your project details to get estimated delivery times, CSI scope coverage, and claim your 25% first-time discount.
Construction Calculators Q&A
Frequently asked questions about our construction estimation and calculation tools.