Find the real best deal
Unstack double discounts, compare unit prices and split the bill afterwards.
Shopping & life tools
Discount & Sale Price Calculator
Work out sale price, double discounts and savings in seconds.
Unit Price Calculator
Compare price per unit between packages and see which one is cheaper.
Tip Calculator & Bill Splitter
Calculate the tip and split a bill evenly among any number of people.
Sales Tax Calculator
Add or reverse sales tax and get the total price including tax.
Currency Converter
Convert between world currencies with daily mid-market rates; works offline with a bundled snapshot.
Fuel Cost Calculator
Estimate trip fuel cost in L/100 km or MPG, with round-trip option.
Shoe Size Converter
Convert shoe sizes across EU, US, UK and CN systems for men, women and kids.
Ring Size Converter
Turn finger circumference or diameter into US, EU, CN and JP ring sizes.
Percentage Calculator
Calculate percentages, percentage increase and change instantly in your browser.
Cooking Measurement Converter
Cups, tablespoons, teaspoons, grams and milliliters with ingredient densities.
Gold & Precious Metal Weight Converter
Convert grams, Chinese liang and qian, Hong Kong tael, troy ounces and carats.
Volumetric Weight Calculator
Compare dimensional weight with actual weight using 5000, 6000, 7000 or 139 divisors.
Electricity Cost Calculator
Estimate kWh usage and running cost of any appliance per day, month and year.
Rental Yield Calculator
Calculate gross and net rental yield, annual rent and expenses for a property.
Clothing Size Converter
Convert clothing and shoe sizes across US, UK, EU and international size charts.
Passport / ID Photo Maker
Crop photos to passport and visa sizes, replace the background color and lay out a print sheet.
How shoppers use Sort123
Buy across borders
Convert currencies with offline rates and add or reverse sales tax at checkout.
Get sizes right
Convert shoe and ring sizes across EU/US/UK/CN systems before ordering.