Free beekeeping tools › Sugar syrup calculator

Sugar syrup calculator for bees

Choose a ratio and enter what you know: the sugar, water and resulting syrup are calculated instantly. Ratios are sugar : water by weight.

Sugar–
Water–
Syrup made–
Sugar content–

Quick chart: for 10 litres of syrup

Ratio (sugar : water by weight)SugarWaterSyrup weight
1:16,1 kg6,1 L12,3 kg
3:27,7 kg5,1 L12,9 kg
2:18,8 kg4,4 L13,3 kg
Dissolve the sugar in warm water (about 40–50 °C); do not boil or caramelise it, as heated sugar can form compounds that harm bees. Use only white beet or cane sugar, never brown sugar or honey of unknown origin. Feed in the evening and avoid spills to prevent robbing.

Frequently asked questions

What is the sugar syrup ratio for bees?

Use 1:1 (1 kg sugar + 1 litre water) in spring to stimulate build-up and 2:1 (2 kg sugar + 1 litre water) in autumn for winter stores. Ratios are by weight; 1 litre of water counts as 1 kg.

How much syrup does 1 kg of sugar make?

At 1:1, 1 kg of sugar and 1 litre of water make about 1.6 litres of syrup; at 2:1, 1 kg of sugar and 0.5 litres of water make about 1.1 litres. Dissolved sugar adds roughly 0.63 litres of volume per kilogram.

How much sugar does a colony need for winter?

In a temperate climate a strong colony usually needs about 15–20 kg of stores for winter. Subtract the honey already in the hive and feed the difference; 1 kg of sugar makes about 1.2 kg of stores.

When should you not feed syrup?

Do not feed syrup while honey supers are on for harvest, as it ends up in the honey. When it gets too cold the bees cannot take liquid syrup; use fondant instead.

More free beekeeping tools

In the knowledge library

Feeding Syrup: When and How Feeding: Syrup, Fondant and Pollen – When and How Feeding Fondant and Candy: When and How Beekeeping calendar (month by month)

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