Free preview · exactly what's in the paid guide

Check our work before you pay.

This is the complete assumptions section and worked example from the paid guide — no abridgement, no teaser math. If you like how it thinks, the C$10 pack adds the interactive calculator and the spreadsheet.

The assumptions

Assumption	Value
Wine glass	150 ml
Wine bottle	750 ml → 5 glasses
Beer	355 ml per bottle
Cocktail spirit	45 ml per drink (≈16 per 750 ml)
Water	Counted in 1-litre bottles
Rounding	Always up — you can't buy 0.7 of a bottle
Buffer	Default 10%, adjustable to 0
Budget split	Food 50 · Beverages 30 · Table & décor 10 · Contingency 10 (all adjustable)

Not advice on consumption. The per-guest figures are your planning inputs for purchasing. Nothing here suggests how much anyone should drink, and nothing is medical advice.

Worked example: six guests

Inputs: 6 guests · 3 glasses of wine each · 1 beer each · 1 cocktail each · 0.5 L water each · wine split 50/30/20 · 10% buffer · budget C$250.

Buy	Math	Result
Red wine	6 × 3 × 150 ml × 50% × 1.1 ÷ 750	2 bottles
White wine	6 × 3 × 150 ml × 30% × 1.1 ÷ 750	2 bottles
Sparkling	6 × 3 × 150 ml × 20% × 1.1 ÷ 750	1 bottle
Beer	6 × 1 × 1.1	7 bottles
Spirits	6 × 1 × 45 ml × 1.1 ÷ 750	1 bottle
Water	6 × 0.5 × 1.1	4 litres

Budget: Food C$125 · Beverages C$75 · Table & décor C$25 · Contingency C$25.

Sequence (arrive 19:00, 10-min pauses): Aperitivo 19:00–19:30 · Starter 19:40–20:20 · Main 20:30–21:30 · Dessert 21:40–22:10 · Coffee 22:20–22:50.

What the C$10 adds

The preview above is the thinking. The paid pack is the doing:

The calculator — change any input and every number follows: bottles, budget, timeline, buy list, printable checklist. Works offline, saves on your device.
The spreadsheet — the same five planners with live formulas, for cell people.
The full guide — this preview plus the cellar-worksheet method and adjustment notes.

Buy the toolkit — C$10 Back to the main page

Secure checkout via Payhip. 14-day refund if the files are defective or not as described.