Currency & Fees

Currency converter, tip calculator, tax and discount tools

Managing money across currencies, tipping customs, sales taxes, and travel budgets requires reliable financial calculators. Whether you are converting between dollars and euros, calculating a restaurant tip, or comparing the true cost of using cash versus a credit card abroad, our financial tools give you clear answers with the math fully explained.

All Currency & Fees Tools

Currency Converter

Convert between world currencies

Tip Calculator

Calculate tips and split bills

Sales Tax Calculator

Calculate sales tax by state or custom %

Discount Calculator

Calculate percent off and stacked discounts

Travel Money Calculator

Compare cash vs card fees for travel

Tipping Etiquette Around the World: A Complete Guide

Tipping customs vary dramatically worldwide. This guide covers the norms for restaurants, hotels, and taxis in every major region.

How Currency Exchange Rates Work

Learn the mechanics behind exchange rates, what causes currencies to strengthen or weaken, and tips for getting the best deal.

Sales Tax in the United States: A State-by-State Overview

A comprehensive overview of sales tax across the US, including state rates, local additions, and common exemptions.

Tipping Around the World

Tipping customs vary widely by country. In the United States, tipping 15 to 20 percent at restaurants is standard. In Japan, tipping is considered rude. In many European countries, a service charge is included in the bill, and rounding up is sufficient. Our tip calculator lets you adjust the percentage and split the bill among any number of people.

Understanding Sales Tax

Sales tax rates in the United States vary by state and even by city. Oregon has no sales tax, while combined state and local rates in parts of Louisiana exceed 11 percent. Our sales tax calculator lets you enter a custom rate or look up the rate by state so you know exactly what you will pay at checkout.