Lawn Feed Calculator — How Much Fertiliser for My Lawn
Calculate the right amount of lawn fertiliser for your grass area.
How We Calculate This
Feed quantity = Lawn Area × Application Rate × Number of Applications.
Granular feed rates: Spring 35g/m², Summer 25g/m², Autumn 30g/m². Liquid feed: ~50ml/m² (diluted).
Number of applications varies by season: summer may need 2-3 feeds, while spring and autumn typically need one.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates based on standard gardening guidelines. Results may vary with soil conditions, climate, and plant varieties.