Lawn
Lawn Area Calculator
Lawn area for irregular gardens, with the seed, fertiliser and mowing time it implies.
area = Σ shapes − beds and paths
Also called garden area calculator · grass area
Garden, Farm & Pets · 8 calculators
Lawn Calculators
Lawn area, grass seed, sod, fertiliser, watering, topsoil, mowing time and mulch for your yard.
Lawn
Grass Seed Calculator
Grass seed needed for a new lawn or overseeding, with the cost.
seed = area × sowing rate ÷ germination r…
Also called lawn seed calculator · how much grass seed
Lawn
Sod Calculator
Turf rolls or pallets needed for a lawn, with waste allowance and cost.
rolls = area × (1 + waste) ÷ coverage per…
Also called turf calculator · how much turf do i need
Lawn
Fertilizer Calculator
Fertiliser needed for an area at a target nitrogen rate, from the NPK analysis.
product = area × nitrogen target ÷ nitrog…
Also called lawn feed calculator · npk calculator
Lawn
Watering Calculator
Water needed for a garden or lawn, per session and per week.
litres = area × millimetres needed (1 mm …
Also called garden watering calculator · how much to water plants
Lawn
Soil Volume Calculator
Topsoil or compost needed for a bed or area, in cubic metres, bags and tonnes.
volume = area × depth × (1 + settlement)
Also called topsoil calculator · how much soil do i need
Lawn
Lawn Mowing Time Calculator
How long mowing takes from lawn size, mower width and walking speed.
time = area ÷ (effective width × speed) ×…
Also called mowing time calculator · how long to mow
Lawn
Mulch Calculator
Mulch needed for beds and borders, in cubic metres, bags and tonnes.
volume = area × depth
Also called bark chip calculator · how much mulch
Key lawn formulas
| Lawn Area | area = Σ shapes − beds and paths |
|---|---|
| Grass Seed | seed = area × sowing rate ÷ germination rate |
| Sod | rolls = area × (1 + waste) ÷ coverage per roll |
| Fertilizer | product = area × nitrogen target ÷ nitrogen percentage |
| Watering | litres = area × millimetres needed (1 mm over 1 m² = 1 litre) |
| Soil Volume | volume = area × depth × (1 + settlement) |
| Lawn Mowing Time | time = area ÷ (effective width × speed) × obstacle factor |
| Mulch | volume = area × depth |