Most money questions come down to percentages and multiplication, but small slips add up. These calculators give a clear answer for everyday situations: splitting a restaurant bill, working out a sale price, converting an hourly wage to a yearly salary or checking what a raise really adds.
Figures are before tax unless stated, and they are estimates for general information, not financial advice. Each page shows the formula, so you can see exactly how the result was reached. The word counter lives here too, for writers, students and anyone working to a limit.
Tip Calculator
Tip and split the bill
🏷️Discount Calculator
Sale price and how much you save
％Percentage Calculator
Percent of, what percent, percent change
💼Hourly to Salary Calculator
Convert hourly, weekly or yearly pay
📈Salary Raise Calculator
New pay and percentage raise
💸Hours of Work Calculator
Hours of work to afford anything
📝Word Counter
Words, characters, reading time
📖 GuidesAll guides
How to Calculate Percentage Increase and Decrease
Formulas and worked examples for percentage increase, decrease, percent of a number, reverse percentages, markup versus margin and common mistakes.
Hourly to Salary: How to Convert Hourly Pay to Yearly Pay
Convert hourly pay to an annual salary and back, with the 2,080-hour rule, unpaid leave, part-time hours, overtime and a quick reference table.
Percentage Table: 5%, 10%, 15%, 20% and 25% of Common Numbers
A quick reference table of 5%, 10%, 15%, 20% and 25% of common numbers from 10 to 1,000, plus the mental math shortcuts to work out any percentage fast.
How to Calculate a Raise and Compare It With Inflation
How to work out a pay raise in dollars and percent, and how to compare it with inflation to see whether your buying power really grew, with a table of examples.
How Much to Tip in the US: A Guide by Situation
Typical US tip amounts for restaurants, bars, delivery, taxis, hair salons and hotels, whether to tip before or after tax, and how to split a bill.