Typically, you can do this transfer at your bank's ATM. However, if you are using a third party ATM (for example, if you bank with ABC Bank, an ATM for 123 Bank would be a third-party ATM), you may not be able to effectuate a transfer. It really depends on what ATM resources are offered by your bank. Most, however, do allow transfers from a checking to a savings account via the ATM. You can always go to an outside bank's ATM machine as well, but prepared to pay a service fee.