KynricTrades Calculators

Kynric Trades Calculators

Construction calculators.
Metric or imperial.

87 calculators for stairs, concrete, roofing, framing, decking and landscaping. Drag the rise below and watch a real stair rebuild itself.

TOTAL RISE2,700 mmRISER180 mmGOING 250 mm
2,700 mm
250 mm
Risers
15
Riser
180 mm
Going
250 mm
Run
3,500 mm
2 × riser + going = 610 mm ✓ comfortableFull calculator →
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Works offline once installedLook for “Install” in your browser’s menu or address bar

Australia · metric

87 calculators

Concrete & Masonry18

Concrete VolumeCalculate cubic metres of concrete for slabs, footings and walls including wastage.Open →Concrete BagCalculate how many bags of premix concrete are needed for a given volume.Open →Concrete CostEstimate total cost of a concrete pour including delivery surcharge.Open →Concrete QuantitiesCalculate cement, sand and aggregate quantities for site-mixed concrete (1:2:3 mix).Open →Concrete PierCalculate concrete volume for a round pier or post hole footing.Open →Concrete BlockCalculate the number of concrete/Besser blocks needed for a wall.Open →Concrete Block FillCalculate core-fill concrete volume for reinforced block walls.Open →Concrete ColumnCalculate concrete volume for a round or square structural column.Open →BrickCalculate bricks, mortar volume and wastage for a brick wall.Open →How Many Bricks Per M²?Quick lookup for bricks per square metre by brick size and mortar joint width.Open →MortarCalculate mortar volume and bags required for brickwork or blockwork.Open →GroutCalculate tile grout volume and bags required from tile size and joint width.Open →Retaining WallEstimate sleepers/blocks and concrete required for a retaining wall.Open →Retaining Wall BlockCalculate segmental retaining wall block quantity from wall area.Open →Core Drill CostEstimate core drilling cost from hole depth, number of holes, a base rate and a callout fee.Open →Concrete Strip FootingCalculate the concrete volume for a strip footing from its length, width and depth, including wastage.Open →Concrete StepsCalculate the concrete needed for a set of solid concrete steps from the rise, tread, width and number of steps.Open →Rebar & Reo BarEstimate bar count, total length and weight of reinforcing bar for a slab laid on a square grid.Open →

Site Work & Drainage21

Soil & GravelCalculate volume, weight and truck loads of bulk soil or gravel required.Open →AsphaltCalculate asphalt tonnage required from area, thickness and density.Open →Crushed Stone / Road BaseCalculate road base or crushed stone volume and weight for driveways and paths.Open →PaverCalculate the number of pavers required for a patio or path including waste.Open →Plumbing FallCalculate minimum pipe fall and grade per run length for drainage compliance.Open →Pool VolumeCalculate swimming pool volume in litres for a rectangular pool with sloped floor.Open →Tank VolumeCalculate cylindrical water tank volume in litres from diameter and height.Open →RampCalculate ramp length and grade, with the NCC housing gradient limit explained.Open →Excavation CostEstimate excavation cost from cut volume, an excavation rate and a spoil removal rate.Open →TopsoilWork out how much topsoil you need for a garden bed or lawn, by volume and weight, including wastage.Open →SandCalculate the volume and weight of sand for paving bases, sandpits and bedding, including wastage.Open →MulchCalculate how much mulch you need to cover garden beds to the right depth.Open →Turf & SodWork out how many rolls of turf (sod) you need to lay a lawn, with an allowance for cuts.Open →Garden EdgingCalculate how many lengths of edging and how many stakes you need for a garden bed border.Open →Stepping StoneWork out how many stepping stones fit along a garden path for a chosen stone size and gap.Open →Flagstone & Paving WeightEstimate the weight of flagstone or paving for an area, to plan deliveries and handling.Open →Fire Pit BlockCalculate how many retaining blocks you need to build a round fire pit ring.Open →French DrainCalculate trench volume and the gravel needed around the pipe for a French (agricultural) drain.Open →Pipe VolumeCalculate how much water a length of pipe holds from its inside diameter and length.Open →Excavation VolumeEstimate excavated soil volume, the larger loose volume after digging, and the truck loads to cart it away.Open →Concrete Driveway CostEstimate the cost of a concrete driveway from its size, thickness, concrete price and preparation costs.Open →