To convert Capital One miles to cash, you must log into your account and select "Redeem" under your rewards balance. You have two primary cash-out options: a Statement Credit to reduce your current balance or a Check mailed to your address. However, in 2026, this is considered a "low-value" redemption. Capital One miles are only worth 0.5 cents per mile when redeemed for cash, meaning 50,000 miles equals only $250. This is significantly worse than the 1 cent per mile value you get when using miles to "Cover Travel Purchases" or booking through the Capital One Travel portal. For the best value, most experts recommend transferring miles to airline partners (like British Airways or Aeroplan), where they can be worth 1.5 to 2.0 cents each. Only use the "cash" option as a last resort for miles you don't intend to use for travel.