Peruvian currency is called the Nuevo Sol or Soles for short.
The coin currency is known as "moneda" which includes
a coin of s/.1 sol, of s/.2 soles, and of s/.5 soles, and
less than a sol, for cents, called centavos. The 2018 exchange
rate has been in the area of US$1.00 = Soles s/. 3.25, but
has been slightly flucuating over the past year depending
on the strength of the US dollar. Once arriving in Lima,
most all businesses accept the US dollar. They will figure
the tariff in dollars based on an exchange rate. It is good
to have an idea of the current exchange rate, when exchanging
dollars for soles or vice versa. The rate of exchange is
higher for you to change (or "sell") dollars to
obtain soles. If you exchange soles for dollars (or "buy"
dollars) the rate is less as there is a fee built in for
the exchange to receive the weaker soles currency. This
exchange rate difference is realized at ATM's, in banks,
or if exchanging on the street.
When using an ATM (called a "cajero", meaning
cashier), your bank may charge you an extra fee or a few
percent of the amount, check that first. Although the exchange
rate given via an ATM may be better than in the bank. Generally,
it is advised to exchange money at an ATM or in a bank,
instead of on the street which is akin to a black market,
even though those street exchangers can be found soliciting
in front of banks. The street exchangers wear a colored
vest and are holding a calculator. They might have a slightly
better exchange rate than a bank would give. Whichever you
use, always be aware of your surroundings, and do not look
like a lost tourist.
**Ask at your hotel or at the bank, as to the fees to use an ATM machine. Some banks add a fee to use their ATM.
Some of the major banks in Peru are: Scotia Bank, Banco Continental, and Banco Weise. The machines
DO NOT notify you of that while processing your transaction, as experienced some time ago.
**Warning - if you forget your card in an ATM, the machine
might "eat" your card after some minutes, in which
case the bank will probably not check the machine for you.
Do not count on getting it back. They have orders to destroy
any cards left in the machine (which might be better than
having it stolen, if forgotten in the machine).