Bee Colony Feeding & Syrup, Sugar & Water
Feeds dearth
Enter colonies, feed per hive and syrup strength to get the sugar and waterfor your colonies — 1:1 to stimulate brood, 2:1 for winter stores.
Mix your colony feed
Next: dissolve 10 kg sugar into 10 L warm water to make 20 L of syrup, then fill the feeders across all 10 colonies in one batch.
A sugar fraction near 0.5 (1:1 by weight) suits spring build-up; a heavier ~0.67 (2:1) is for autumn stores. Feed in the evening to reduce robbing.
Bee feeding — key facts
- Syrup ratio
- sugar : water by weight
- 1:1 syrup
- thin — stimulates brood
- 2:1 syrup
- thick — winter stores
- Total syrup
- colonies × feed per hive
- Feed in a
- dearth or before winter
- Mix with
- warm, never boiling water
- Avoid
- brown sugar & molasses
- Privacy
- Runs in your browser; nothing uploaded
Feed the colony right, through the dearth and into winter
When the nectar stops flowing, a colony lives on whatever it has stored — and a beekeeper who waits too long can lose hives to starvation or watch brood rearing grind to a halt. Sugar syrup is the answer: a thin 1:1 syrup mimics a flow and keeps the queen laying through a dearth or a slow spring, while a thick 2:1 syrup lets the bees pack dense feed away as winter stores. Getting the strength and the amount right is the difference between strong colonies and struggling ones.
This tool gives the total syrup, total sugar and water for your colonies at the strength you choose, so you can size your sugar order and mix the right batch in one go. Use 1:1 to stimulate and build up, 2:1 to store down for winter, and scale the whole apiary from a single number. Pair it with the Beekeeping Profit and Honey Extraction Yield tools to plan the season end to end.
Beat the dearth
Bridge the gap when no nectar is coming in.
Stimulate brood
Thin 1:1 syrup keeps the queen laying.
Build winter stores
Thick 2:1 syrup the bees store down fast.
Size your sugar order
Know the sugar and water for the whole yard.
Frequently Asked Questions
Why feed bees sugar syrup?+
In a dearth — when little nectar is coming in — colonies can run low on stores and stop rearing brood or even starve. Beekeepers feed sugar syrup to bridge the gap: a thin syrup stimulates the queen to lay and the colony to build up, while a thick syrup lets bees pack away stores for winter. This calculator gives the total syrup, sugar and water for your colonies and chosen strength.
What is the difference between 1:1 and 2:1 syrup?+
The ratio is sugar to water by weight. A 1:1 syrup (equal sugar and water) is thin, mimics a nectar flow and is used in spring or a dearth to stimulate brood rearing and colony build-up. A 2:1 syrup (twice as much sugar as water) is thick, closer to ripe honey, and is fed in autumn so bees can quickly dehydrate and store it as winter stores.
How is the sugar and water worked out?+
From the feed you want per hive and the number of colonies, the tool finds the total syrup volume, then splits it into sugar and water by the chosen ratio. For 1:1 the syrup is roughly half sugar and half water; for 2:1 it is about two-thirds sugar. So feeding 10 hives 2 L of 2:1 each needs around 20 L of syrup made from a large share of sugar — the figures here size your sugar order.
When should I feed 1:1 versus 2:1?+
Feed 1:1 in early spring and during summer dearths to stimulate brood and build colony strength, and to draw out new comb. Switch to 2:1 in late summer and autumn so the colony stores dense feed for winter without having to evaporate much water. Stop heavy feeding once brood rearing winds down and the cluster has enough stores.
How much winter store does a colony need?+
It varies with climate and colony size, but a typical colony needs a substantial reserve to survive winter — often 15–25 kg of stores in cold regions, less in mild ones. Use the per-hive feed amount to top up what the bees already have in the comb, weighing or hefting hives to judge how much more 2:1 syrup to give.
Can I feed during a honey flow?+
Avoid heavy feeding during a honey flow you intend to harvest — fed sugar can end up in the supers and adulterate the honey. Stimulative 1:1 feeding is mainly for build-up before a flow or during a dearth, and storage feeding is done after the harvest supers are removed. Always feed inside the hive to prevent robbing.
Does syrup strength change how much sugar I buy?+
Yes — a thick 2:1 syrup contains far more sugar per litre than a thin 1:1 syrup, so the same volume of feed needs much more sugar at 2:1. That is exactly why the calculator splits each batch into sugar and water for your chosen ratio: it tells you the sugar to buy and the water to add for the total feed across all your colonies.
How do I mix the syrup safely?+
Dissolve plain white granulated sugar in warm (not boiling) water — overheating can caramelise the sugar and harm bees. Stir until clear, let it cool, and feed using a frame, top or entrance feeder. Avoid brown sugar, molasses or substitutes high in solids, which can cause dysentery in the cluster.
Does this work for any number of colonies?+
Yes — enter the number of colonies in your apiary and the feed per hive, and the tool scales the total syrup, sugar and water to the whole yard. It works the same for a single backyard hive or a commercial bee operation, so you can plan a feeding round and size your sugar purchase in one go.