Free • Fast • Private
Everyday calculators & converters
Work out sale prices, grade percentages, cooking measurements, exchange rates and meeting times in seconds. No sign-up, nothing to install.
Percentage & Grade Calculator
Find X% of a number, percentage change, exam percentages, and the score you need on your final.
Discount & Sale Price
See the final price after one or two discounts, with optional sales tax and exactly how much you save.
Unit & Cooking Converter
Length, weight, temperature, cups, tablespoons, millilitres, and cups to grams for common ingredients.
Currency Converter
Convert between 29 popular currencies using live exchange rates.
Time Zone Meeting Planner
Pick a time in one city and instantly see it in others, with daylight saving handled for you.
Grade Percentage
Turn marks into a percentage and letter grade, or plan what you need to hit your target.
Why QuickTools?
Each tool does one job and gives you the answer as you type. Calculations happen in your browser, so the numbers you enter stay on your device. The only exception is the currency converter, which downloads current exchange rates.
Are the results accurate?
Percentage, discount, unit and time zone results are exact. Cooking conversions between cups and grams use typical values for each ingredient, so treat them as a close guide. Currency rates are indicative and may differ from your bank's rate.
Is it free?
Yes. All tools are free to use with no account required.