Garden Area Calculator
Calculate the total area of your garden or any outdoor space. Add multiple sections of different shapes for accurate fertiliser, seed, membrane, or aggregate quantities.
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Garden Measurement Guide
What do I need to know about Measuring Irregular Shapes?
Divide irregular areas into overlapping rectangles, triangles, and circles. A typical garden might be: main lawn rectangle, minus a circular flower bed, plus a triangular corner border. Calculate each section and add or subtract as appropriate.
Why Accurate Area Matters?
Lawn products (seed, fertiliser, treatments) are dosed per m² — incorrect area wastes money or causes patchy results. Topsoil and compost quantities are calculated per m² and depth. Aggregate and membrane quantities require accurate area to avoid under or over-ordering.
What do I need to know about Rope Technique for Curves?
For curved garden edges, lay a length of rope along the boundary, then straighten it out and measure. This gives the perimeter length accurately. For area, photograph the garden from above and divide into measurable shapes.
What do I need to know about Planning Garden Zones by Area?
Once you know your garden's total area, dividing it into functional zones makes planning much easier. A rough starting split for a family garden: 40-50% lawn or open space, 20-30% planting beds and borders, 15-20% patio or hard landscaping, and 10-15% for paths, storage, or a shed. Smaller gardens (under 50m²) often work better with fewer, larger zones rather than trying to fit in every feature — a single well-proportioned patio reads better than a patio, a separate seating area, and a vegetable bed all competing for space. For vegetable growing specifically, allow roughly 3-4m² per person for a reasonably self-sufficient summer harvest of salad and easy crops, more if you want to grow storage crops like potatoes or squash. Always measure the USABLE area (excluding permanent structures like sheds or established trees you're keeping) when planning what will actually fit, since the total area calculated here includes everything within the boundary.