RetireBase is a cash-flow calculator that uses your expenses, government pensions, incomes, and assets to display charts and an analysis that show the resulting cash flow and asset adjustments from the current year to age 100. Changes can be made to inflation and interest rates and any year's values and "what-if" analysis is easy to do.
RetireBase is the most comprehensive, non-commercial calculator available. One window for entering data. Charts are automatically updated as data is entered. Additional pages to adjust by year, if desired. Automatically moves assets so that there is money on the last year, if possible. The download is a free demo that lasts 31 days. There are restrictions on data that can be entered during this period, but there are examples for each age group and country.