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Active cluster
Earthwork & Drainage
Plan trench excavation and related earthwork quantities with the current calculator, visible formulas, and documented assumptions.
For homeowners, trades and estimators
Construction calculators and material estimates.
Use metric or imperial measurements to estimate material quantities. Each tool shows its formula, unit conversions, assumptions, and rounding.
Start here
What do you need to work out?
Choose the result you need. Every link below opens a current calculator, guide, or reference chart.
01
Calculator
Calculate gravel volume
Measured area and volume, planning allowance, and optional supplier-density mass
Open calculator 02 CalculatorCalculate sand volume and packages
Measured and planning volume, optional mass, and whole packages from documented product inputs
Open calculator 03 CalculatorCalculate trench excavation volume
In-place volume, loose planning volume, and estimated loads
Open calculator 04 BlogBuild a delivered gravel cost estimate
A quote worksheet with material, delivery, fees, and exclusions
Open blog 05 BlogCheck gravel coverage by depth
Coverage tables for one cubic yard and one cubic metre
Open blog 06 ChartsUnderstand gravel size and gradation
Particle-size references and supplier-label checks
Open charts 07 ChartsConvert gravel volume to estimated weight
A supplier-density multiplier chart and compatible unit paths
Open charts 08 BlogCalculate how much gravel a project needs
Measured volume separated from allowance and supplier rounding
Open blog 09 BlogCompare bagged and bulk sand orders
A same-product quantity, cost, delivery, and access comparison
Open blog 10 BlogCheck sand coverage by depth
Exact cubic-yard and cubic-metre coverage tables
Open blog 11 ChartsConvert sand volume to estimated weight
A supplier-density chart with imperial and metric unit paths
Open charts 12 BlogChoose sand for a construction project
A specification-led product and supplier checklist
Open blog- Open accessUse current tools immediately.
- Metric + imperialUnits remain explicit.
- Browser calculationInputs stay in the active page.
- Visible methodFormula, assumptions, and sources are shown.
Working tool 01
Calculate gravel volume.
Enter metric or imperial dimensions. Add a planning allowance or supplier bulk density only when your project records support that value.
Measured volume
– m³
Planning volume– m³
Measured area– m²
Measured equivalent– L
Allowance applied0%
Estimated mass from supplier densityNot entered
Measured volume = area × layer depth
The measured result comes from geometry. Allowance and mass appear as separate planning stages from values you control.
The full page includes the formula, worked example, measurement guidance, limitations, and technical sources.
Open full calculator guideCurrent library
Choose a current calculator or resource.
Each active cluster groups the calculator with the measurement, material, ordering, and verification guidance needed for that task.
02
Active cluster
Gravel
Choose a gravel calculator, coverage guide, size chart, weight chart, or cost worksheet for measuring and ordering.
03
Active cluster
Sand
Choose a sand calculator, coverage chart, or material guide for volume, depth, supplier density, package yield, and ordering checks.
Research pipeline
Planned topics remain non-clickable until a complete, useful tool or resource exists.
Field knowledge
Check material quantities before ordering.
Use the current guides and charts to check coverage, material terminology, supplier density, and delivered cost before ordering.
Gravel Cost Guide: Build a Delivered Estimate
Estimate total gravel project cost from measured quantity, current supplier pricing, delivery, fees, tax, equipment, and related materials.
Read blog
Gravel Coverage Guide
See how area and installed depth control gravel coverage, with calculated tables for one cubic yard and one cubic metre.
Read blog
Gravel Size Chart and Gradation Guide
Understand gravel particle-size references, sieve openings, gradation, and why supplier labels must be checked against a project specification.
Read chart
Gravel Weight Chart Using Supplier Density
Convert gravel volume to estimated weight using the selected supplier product's bulk density and stated material condition.
Read chart
How Much Gravel Do I Need?
Measure an area and depth, calculate gravel volume, and use supplier product data to prepare the order.
Read blog
Sand Bags vs Bulk: Quantity, Cost and Delivery
Compare bagged and bulk sand using product yield, supplier minimums, delivered cost, site access, handling, and order rounding.
Read blog
Sand Coverage Guide: Charts for Cubic Yards and Cubic Metres
See how much area one cubic yard or cubic metre of sand covers at different depths, with formulas and field checks.
Read blog
Sand Weight Chart: Cubic Yards and Cubic Metres
Convert cubic yards or cubic metres of sand to estimated weight using the supplier density for the exact product and condition.
Read chart
Types of Sand for Construction: Selection and Specification Guide
Compare concrete, masonry, fill, manufactured, paver, and play sand using specifications, product data, and supplier records.
Read blogCalculation method
See each step used in the result.
Each result shows the measured quantity, added assumptions, rounding, and items that still need a project or supplier decision.
- 01Measure the geometry
Split changing shapes into checkable sections and keep every dimension in one unit system.
- 02Control the assumptions
Add density, swell, waste, compaction, or delivery increments only when a credible project source supports them.
- 03Review the result
Keep rounding, limitations, formula scope, and the difference between measured quantity and supplier order visible.
Working calculator
Calculate gravel volume.
Enter the measured area and layer depth, then keep any allowance or supplier-density input visible beside the result.
Open the calculator