Excavation & Backfill CalculatorWHATSON / CONSTRUCTIONExcavation & Backfill CalculatorBuild a pit schedule and estimate excavation, spoil and backfill.Starting measurements are editable examples. Enter your site measurements and supplier quotes.1 MeasurementsMeasurement unitFeetMetresInchesCentimetresMillimetresPermanent occupied volume (m³)2 Earthwork assumptionsLoose spoil factorDelivered fill factorTruck capacity (cft)3 Work quotesExcavation rate (PKR / m³)Optional. Enter your own supplier quote.Delivered fill rate (PKR / cft)Optional. Enter your own supplier quote.Excavation scheduleReferenceLengthWidthDepthQuantityRemoveReferenceLengthWidthDepthQuantityRemoveAdd rowCalculate estimateReset inputs