What's This Plant - NPK Calculator

Help! How Much Should I Feed My Plant?

What's This Plant NPK Feeding Calculator

Plant type

Feeding goal

Water volume

Your fertilizer NPK (%)

Use the numbers on the label, e.g. 4-6-3.

Strength

Gentle (½ strength) Normal (1×) Strong (1½×)

Show advanced N / P / K details

Approximate guidance only. Always watch your plants and follow the product label. ppm values are estimates and can vary with water quality, media, and fertilizer type.

Multi-fertilizer mixer (optional)

Mix two fertilizers or amendments and see the combined NPK of the blend. Amounts can be grams (dry) or ml (liquid) as long as you’re consistent between A and B.

Fertilizer A

Name (optional) NPK of A (%)

Amount of A (g or ml)

Fertilizer B

Name (optional) NPK of B (%)

Amount of B (g or ml)

Help! How Much Should I Feed My Plant?

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