Use this calculator for quick gratuity calculations with optional per-person figures for shared bills.
Inputs
The strongest pages in the library pair the live calculator with a topic guide and, where it helps, a printable reference you can reuse offline.
Use this page when you need a quick tip result for everyday tasks, travel, household maths, or recipe work.
These calculators use the units and relationships shown on the page only. Real costs, measurements, and conditions can still vary in practice.
Split a bill between any number of people and optionally include a tip, all from the values you enter yourself.
Use the Discount Calculator to work out discount from values you control yourself, without baked-in policy assumptions.
Use the Recipe Scaling Calculator for everyday conversions, travel planning, or kitchen maths with clear units where relevant.
Calculate fuel efficiency from the distance and fuel figures you enter yourself, with no hardcoded prices or regional assumptions.