Excavation Cost Calculator

Cost per Cubic Yard is the most stable number this calculator produces: because Machine Cost and Hauling Cost are both exactly proportional to Excavation Volume — Machine Hours divides volume by a production rate, and Hauling Cost is volume times a flat per-yard haul rate — Total Cost scales in lockstep with volume too, which means Cost per Cubic Yard stays essentially constant no matter how large or small the job is. What actually moves Cost per Cubic Yard is Soil/Material Type and the two rate inputs: Rock applies a 2.5x production penalty (digging is slower) plus a higher $15/yd haul rate versus $10/yd for earth or mixed soil, so switching from Earth to Rock raises the per-yard cost substantially — about 1.77x at this calculator's default Machine Rate and Base Production Rate — even though Volume never changed. That ratio isn't fixed, though: it climbs above 2x only once Machine Rate divided by Base Production Rate exceeds roughly 10 (a comparatively expensive machine paired with a slow production rate). Base Production Rate has an inverse relationship with cost — a faster rig (higher cu yd/hr) needs fewer Machine Hours, which lowers Machine Cost directly.

Machine Rate scales Machine Cost up in direct proportion, same as any hourly rental rate would. Machine Type is provided as a label for your own reference on the estimate but does not change any calculated value here — Base Production Rate is what actually drives productivity in this model, so pick the number appropriate to whichever machine you select. This is a materials/equipment estimate only; it does not include mobilization, permits, or utility locate costs.