Calculate · 8 tools
Everyday Life Tools
Calculators for the decisions you make standing up — splitting a bill, checking a discount, working out whether the electricity bill is the tumble dryer. Each one keeps its numbers in the URL, so you can send the answer to whoever is arguing with you.
Available now
8 of 8Tip Calculator & Bill Splitter
Split any bill evenly, by item, or unevenly per person.
Discount & Sales Tax Calculator
Stacked discounts, sales tax, and unit-price comparison.
Unit Converter
Length, weight, volume, temperature, speed, data, area and time.
Fuel Cost & Road Trip Calculator
Trip fuel cost in MPG or L/100km, split between passengers.
Electricity Bill Estimator
Cost per appliance, ranked, from wattage and hours of use.
Rent Split Calculator
Split rent by room size, income, or move-in date.
Age Calculator
Exact age, next birthday, and the gap between two dates.
Time Zone Meeting Planner
Find the working-hour overlap across up to eight cities.