Field Tools
Application Rate Converter
Convert fertiliser, seed and spray rates between per-hectare and per-acre. Supports kg, tonnes, litres, gallons and cwt.
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Rate Converter
Select a unit, enter your rate and choose the direction to convert.
Enter a rate above to see the conversion…
1 hectare = 2.47105 acres · 1 acre = 0.404686 hectares
Common Reference Rates
Typical UK application rates for common products.
| Product | per Hectare | per Acre |
|---|---|---|
| Calcium Ammonium Nitrate (CAN) | 150–200 kg | 61–81 kg |
| Urea (46% N) | 100–200 kg | 40–81 kg |
| Grass seed (new ley) | 35–40 kg | 14–16 kg |
| Winter wheat seed | 150–200 kg | 61–81 kg |
| Herbicide (typical) | 1–5 litres | 0.4–2 l |
| Slurry (cattle) | 25–50 m³ | 10–20 m³ |
Reference figures only. Always follow product label rates and agronomist recommendations.