Concrete Calculator

How the calculation works

Volume = length × width × (thickness ÷ 1,000). Order volume = volume × (1 + allowance ÷ 100). Cost = order volume × price per m³.

A worked example

10 m × 5 m × 100 mm = 5.00 m³. With a 5% allowance, the estimate is 5.25 m³. At a user-entered ₱5,000/m³, concrete alone would cost ₱26,250.

Assumptions & exclusions

Assumes a uniform rectangular slab. Does not include beams, footings, uneven subgrade, pump charges, minimum orders, delivery, labour or reinforcement. The 5% allowance is an editable example, not a site recommendation. Confirm supplier increments before ordering.

Can this choose the right slab thickness?

No. Thickness is an input from your plans. Concrete strength, mix design, slab thickness and reinforcement must be specified for your project by a qualified professional.

What does the price include?

Only the estimated material quantity multiplied by your entered price. No live prices are supplied. Delivery, labour, accessories and any taxes not included in your supplier’s price are excluded. Blank prices leave cost uncalculated; zero is treated as an explicit ₱0 price.