Mixers Calculator — Tonic, Cola & Soft Drinks
Calculate how many bottles of mixers you need for spirits at your party.
Number of guests drinking spirits with mixers
How We Calculate This
This calculator estimates mixer quantities based on the number of spirit drinkers and event duration.
The formula
Total mixer = spirit drinkers x drinks per person x 150ml
Mixers are split into tonic (25%), cola (30%), lemonade (20%), soda water (15%), and ginger ale (10%). Quantities are converted to 1-litre bottles, rounded up.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Adjust quantities based on your guests and event type.