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Slurry Tank Capacity Calculator

Work out your slurry tank or lagoon capacity in gallons and tonnes from its dimensions.

If your tank is never filled right to the top, enter that unused depth here to get a more realistic usable capacity.
Quick storage check (optional)

This gives a rough days-of-storage estimate only. For an actual check against your legal minimum storage period, use the full Slurry Storage Capacity Calculator, which accounts for your county and housing category.

Default of 35 l/head/day is typical for a dairy cow — adjust freely for other stock classes.

Have a gallons/acre application rate and need to convert? Slurry / Manure Unit Converter

Simple arithmetic — no external data dependency. Treat as an estimate.

More Nutrient Management calculators

Stocking Rate Calculator
Work out livestock units per hectare and check against standard or derogation nitrogen limits.
kg/ha ↔ Units/Acre Converter
Convert fertiliser rates between kg/ha and units/acre instantly, both directions.
Slurry / Manure Unit Converter
Convert slurry gallons/acre to tonnes/ha, and solid manure tonnes/acre to tonnes/ha.