Walkway Width Calculator
A garden path that is too narrow is annoying every single day and a path that is too wide is a waste of paving and of garden, and the right width is decided by one question: what has to get…
Tool Category Garden & Outdoor
Garden and outdoor planning calculators: how much seed, turf, soil, mulch and compost a bed or border needs, how many plants fit at a given spacing, how much irrigation your borders actually draw, and what fences, paths and patios add up to. Garden and Outdoor Calculators.
Greenhouse Volume Calculator
A greenhouse is bought by footprint and used by volume. The floor area tells you how many plants fit; the cubic capacity tells you how much air has to be heated, cooled and exchanged, and it is the figure that…
Pruning Waste Volume Calculator
The surprising thing about pruning is how much volume a small amount of plant produces. Cutting thirty centimetres off eighteen metres of hedge removes about twelve cubic metres of envelope, and the pile that results is around seven — because…
Frost Date Seeding Calculator
Every seed packet in the world gives its sowing advice the same way: sow six weeks before the last frost. That is excellent advice and almost useless on its own, because nobody’s diary has a week in it. What you…
Tree Hole Volume Calculator
The modern advice for planting a tree is almost the opposite of what most people do: dig a hole two or three times the width of the root ball and no deeper than the root ball itself. The old practice…
Compost Bin Volume Calculator
The question with a compost bin is never how much it holds, it is how long it takes to fill and whether there is somewhere to turn it into. A cubic metre sounds generous until you work out that a…
Drip Line Length Calculator
Drip irrigation is planned in rows and bought in metres, and the gap between those two is usually the first surprise: a modest vegetable patch with six beds needs more than fifty metres of line once the headers are counted,…
Irrigation Run Time Calculator
How long should the sprinkler run? The question sounds like it needs a rule of thumb and it does not — it needs three numbers you can measure and one you can look up. Area and depth give litres directly,…
Patio Paver Calculator
Paving is priced per slab and bought by the pack, but it is sold against an area you have to supply, and the two only line up if the joint width and the cutting waste are in the calculation. This…
Fence Length Calculator
Fencing is priced by the panel and sold by the panel, but the boundary is measured in metres, and those two do not divide evenly. A sixty-metre run at 1.8-metre panels is thirty-three panels and change, which means thirty-three paid…