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This is a currency exchange rate calculation tool for individuals and families. Using RMB as a common benchmark, it helps you estimate foreign currency amounts, travel expenses, and cost differences.

Reference Exchange Rate Overview: View the open market reference prices of common currencies such as USD, EUR, JPY, and HKD relative to RMB; supports pull-to-refresh; offline calculations are also possible without an internet connection.

Currency Conversion: Multi-currency two-way conversion, one-click exchange, quick amount calculation; calculation records are saved only on your local device for easy review of travel or study abroad estimates.

Travel Budget: First, set a total budget in RMB, then break it down by destination currency for items such as accommodation, food, and transportation. Use a progress bar to check if you've exceeded your budget—for personal planning practice.

Cost Calculation: Estimate approximate foreign currency earnings using assumed fixed costs, percentage costs, and exchange rate deviations. This is an arithmetic practice tool and will not initiate any actual transfers.

Purchasing Power Mirror: Converts common prices like coffee, subway fares, and lunch into RMB to help you develop a sense of destination spending habits.

Trend Illustration: Generates a graphical curve based on the current reference price to understand the concept of "fluctuation"; not real-time market data and cannot be used for buying or selling decisions.

Exchange Rate Explanation: Provides original educational articles on travel cash preparation, cost understanding, how to read reference prices, observation habits for studying abroad, and airport exchange premiums.

Important Note: We only provide information inquiry and local calculations; we do not offer currency exchange, cross-border transfers, account opening, payment, or any transaction matching services. Figures within the application are for reference or estimation only; actual results are subject to the on-site display.