🍯 Simple Syrup Ratio Calculator

Enter your desired total syrup amount and ratio (1:1 standard, 2:1 rich) to see exactly how much sugar and water to combine.

Splitting the total by weight

You give the finished weight and the tool divides it between sugar and water:

per part = total (g) / (sugar parts + water parts)
sugar (g) = sugar parts × per part
water (g) = water parts × per part
RatioSugar in 500 gWaterRough volume
1:1 standard250 g250 gabout 405 ml
2:1 rich333 g167 gabout 375 ml
3:1 extra rich375 g125 gabout 365 ml

Everything here is weight, water included, so one scale does the job. Recipes calling for a cup of each are not the same thing: a cup of granulated sugar weighs about 200 g against 237 g of water, nearer 0.85:1.

Which ratio, and how it changes a drink

Rich syrup is not just sweeter, it carries less water into the glass. Three quarters of an ounce of 1:1 brings 0.375 oz of water with its sugar; the same sugar from 2:1 takes 0.56 oz, so the drink starts a quarter ounce less diluted before you reach for ice. Swap at two thirds the volume.

Rich syrup also keeps far longer - roughly a month in the fridge for 1:1 against six for 2:1, because there is too little free water for anything to grow in.

Sugar dissolves in water to about 2:1 by weight at room temperature, so 1:1 needs only stirring and 2:1 a little warmth. The 3:1 option is past saturation: it must be heated to dissolve and will crystallise in the bottle as it cools unless you keep it warm or thin it slightly.

Frequently asked questions

What is the ratio for simple syrup?

Equal weights of sugar and water for standard syrup, so 250 g of each makes 500 g. Rich syrup is two parts sugar to one part water.

Do I need to boil simple syrup?

No. Boiling drives off water and changes the ratio you just measured. Warm water and a whisk dissolve 1:1 in a minute, and 2:1 needs only gentle heat.

Can I substitute rich syrup for simple syrup?

Yes, at about two thirds the volume. Replace 0.75 oz of 1:1 with 0.5 oz of 2:1 and the drink is slightly less diluted, which usually suits stirred drinks.