Food & Dining Calculators

Restaurant maths gets done badly under time pressure. The tip calculator handles pre-tax versus post-tax tipping and rounds to a sensible total; the bill split calculator goes past dividing by the headcount, letting people who ordered more pay more and still splitting tax and tip proportionally.

The pizza calculator answers the question every party host gets wrong — how many pies for how many people, accounting for appetite and slice size — and the grocery budget calculator turns a household size and weekly spend into a plan you can actually shop against.