---
title: "Planners & Calculators"
canonical: https://gardensuperstore.com.au/planners-and-calculators/
dateModified: 2026-07-21 00:23:14
summary: "Free lawn and garden planning tools: measure your lawn, plan seasonal maintenance, space your plants, calibrate your sprayer and convert fertiliser rates."
type: page
---

# Planners & Calculators

> Free lawn and garden planning tools: measure your lawn, plan seasonal maintenance, space your plants, calibrate your sprayer and convert fertiliser rates.

Take the guesswork out of lawn and garden care. These free tools help you measure your space, plan the season and get application rates exactly right — the same way the professionals do.

Plan your lawn & garden

- Lawn & Garden Size Calculator — Measure your lawn or garden beds on a satellite map to get accurate areas for product rates.

- Lawn Maintenance Planner — Build a season-by-season lawn care program tailored to your grass type and climate.

- Plant Spacing Calculator & Garden Layout Planner — Work out how many plants you need and lay out your beds with the right spacing.

- Shade, Sun & Water-Stress Risk Mapping Tool — Map shade, sun and water stress across your yard to diagnose problem areas before they spread.

Application & product calculators

- Application Rate Calculator — Convert label rates into exactly how much product you need for your area.

- Sprayer Calibration & Application Calculator — Calibrate your sprayer and dial in water and chemical volumes with confidence.

- Oxide to Elemental NPK Conversion — Convert fertiliser oxide analysis to elemental N-P-K so you can compare products fairly.

### Something attacking your lawn or garden?

Use the Problem Solver to identify pests, weeds and diseases — and see the registered products we stock to treat them.

[Open the Problem Solver](/problem-solver/)