Fieldlink Civil Hub

Pipe Grade Calculator

Enter the upstream and downstream invert levels and the pipe length to get the fall, grade and ratio for the run.

Trench Volume Calculator

Enter the trench dimensions (and optionally the pipe and bedding) to get excavation, bedding and backfill volumes.

Aggregate Calculator

Work out how much aggregate you need in cubic metres and tonnes.

Concrete Calculator

Slab or pour volume from dimensions, with a waste allowance for ordering.

Markup vs Margin Calculator

Markup and margin are not the same thing — a 20% markup is only a 16.7% margin. Check your numbers both ways.

Labour Charge-Out Calculator

An indicative check on what an hour of labour needs to be charged at once on-costs, overheads and non-productive time are covered.

Excavator Charge-Out Calculator

An indicative check on what a machine costs per hour and the rate needed to hit your margin. Not a market-rate guide.