{"version":"1","tool":"gravel","inputs":{"mode":"weight","length_ft":null,"width_ft":null,"depth_in":null,"cubic_yards":null,"short_tons":1,"density_ton_per_yd3":1.4,"extra_percent":0,"quote_unit":"yard","price_per_unit":null,"delivery_fee":0,"minimum_order":0,"order_increment":0.5},"units":{"squareFeet":"ft²","cubicFeet":"ft³","cubicYards":"yd³","shortTons":"US short tons (2,000 lb)","cost":"USD"},"result":{"mode":"weight","areaDetails":[],"squareFeet":null,"baseCubicFeet":19.285714285714285,"cubicFeet":19.285714285714285,"cubicYards":0.7142857142857143,"shortTons":1,"quotes":[{"name":"Supplier 1","unit":"yard","pricePerUnit":null,"deliveryFee":0,"minimum":0,"step":0.5,"quantity":1,"total":null}],"cheapestQuotes":[]},"calculator_url":"https://projectmathlab.com/calculators/gravel-calculator/?mode=weight&short_tons=1&density_ton_per_yd3=1.4&extra_percent=0&quote_unit=yard&delivery_fee=0&minimum_order=0&order_increment=0.5","assumptions":["Density must be confirmed by the supplier for the exact product; the service does not verify it.","Extra allowance is applied before minimum order and increment rounding.","Missing density or price remains null.","Cost includes the entered delivery fee, excludes unentered taxes and other charges.","Purchasing estimate only; no prediction of compaction or guaranteed delivered yield."]}