Why SpadeMath?
Most of the cost overruns on a landscaping or tiling job come from one of two mistakes: ordering too little and paying a second delivery fee, or ordering far too much and paying to haul it away. Every SpadeMath calculator shows its formula, the density or coverage figure it uses, and a worked example, so you can check the math yourself instead of trusting a black box.
- Volume and weight together. Aggregate yards sell by the ton, garden centers sell by the bag, and plans are drawn in feet. We convert between all of them.
- Realistic allowances. Waste and compaction factors are separate, adjustable inputs, not hidden fudge factors.
- No sign-up, no tracking. The calculators run entirely in your browser.