Size Your Landscape,
Feed Soil, Cut Waste.
Free yard and home calculators: how much mulch or topsoil you need, gallons of paint per room, grass seed rates, plant spacing, and paver counts — with the math explained.
3-Inch Mulch Blanket
1 cubic yard covers 108 sq ft at 3 inches deep: the weed-suppressing moisture sweet spot.
Sod Pallet Squares
Standard sod pallets contain 450–500 sq ft (50 rolls of 2x5 ft or 100 slabs).
Fertilizer N-P-K Pounds
Apply 1.0 lb actual nitrogen per 1,000 sq ft by dividing percentage guaranteed analysis.
YardMath Calculators
Mulch Calculator
Cubic yards and bag counts for any bed — with the depth guidance that separates pros from mulch volcanoes.
Paint Calculator
Gallons of paint for any room — wall area minus openings, with coats and coverage done properly.
Grass Seed Calculator
Pounds of seed for new lawns or overseeding — by grass type, using published per-1,000-sq-ft rates.
Plant Spacing Calculator
How many plants fill a bed — row counts, plants per row, and total, at square or triangular spacing.
Paver Calculator
Paver count, base gravel, and bedding sand for any patio — with the waste factor pros build in.
Building Code & Methodology
How Much Mulch Do I Need? (The Math, the Depth, the Bags)
Cubic yards by the formula, depth by the situation, and the bulk-vs-bags breakeven — everything behind the mulch calculator.
How Many Gallons of Paint for a Room?
The 350-sq-ft rule, why two coats win, and the surfaces that drink paint — the realistic math behind the paint calculator.
When to Plant Grass Seed — and How Much to Buy
Cool-season and warm-season seeding windows, the rates per 1,000 sq ft, and the watering schedule that actually germinates a lawn.