Tools

Small calculators for the jobs that come up when you are planning a plot. No account needed.

• Soil and compost calculator How much a raised bed or container needs, and what that is in bags. Build your own mix. Metric or imperial. Handles tapered pots.
• Frost dates and garden climate Last and first frost, growing season, rain, sunshine and hardiness zone for anywhere in the UK. Search a town or postcode, or explore the map. From thirty years of Met Office records.

Something you keep working out by hand? Tell me what it is and it might end up here.