Multiple base currencies
Set more than one base currency for flexible comparison. Premium unlocks unlimited base currencies.
Multi-currency converter
Compare multiple currencies in one app
Flexchange lets you keep multiple base currencies and target currencies ready, making it easier to compare money across the currencies you actually use.
Designed for comparison
Currency work is often more than “100 USD to EUR.” You may need USD to EUR, GBP, JPY, and CAD today, then EUR as the base tomorrow. Flexchange keeps that mental map closer.
Unlimited target currencies
Add as many target currencies as you need with Premium.
Fast amount entry
Enter an amount once and scan conversions under your selected base currency.
Calculators for totals
Create calculators for grouped amounts, trip budgets, shopping lists, or recurring checks.
Base currencies, targets, and calculators
A base currency is the unit you start from. Target currencies show what that amount is worth in other units. Multiple bases are useful when you regularly start with different currencies, while calculators help organize groups of amounts.
For example, you may want a USD-based view for income and an EUR-based view for travel spending. Keeping both reduces repeated setup, but you should still check that each estimate uses the direction you intended.
Compare a mixed-currency budget
Try the free web multi-currency calculator to compare one amount across several currencies and total your own expenses.
Using illustrative rates, a 200 EUR hotel at 1.10 USD per EUR is 220 USD. An 80 GBP train ticket at 1.25 USD per GBP is 100 USD. Together they are an estimated 320 USD before fees. Do not add the original amounts and call the result 280 USD.
Our expense comparison guide shows how to choose a common currency, separate fees, and preserve your original amounts.
Choose the right amount of saved setup
Free includes currencies and calculators with plan limits. Premium unlocks unlimited base currencies, target currencies, calculators, and currencies within each calculator. Check Free and Premium for the feature comparison and the app for current limits.
When rates have synced before, offline comparisons use saved data. Review offline behavior before traveling and rate methodology before interpreting an estimate as a transaction quote.
