The national currency and exchange rate of Nepal is the Nepalese Rupee (Rs.), which is divided into 100 paisa, although you are not likely to encounter the latter. Bills come in 5, 10, 20, 25, 50, 100, 500 and 1,000 rupee denominations. Coins come in 1, 5, 10, 25, and 50 Paisa, and 1, 2, 5, and 10 rupee denominations. At this writing, the exchange rate was Rs.99 to $1.
The currency of Nepal is not that strong compared to the western country, It is a very easy country to exchange any currency in Nepal. There are many money exchange place in City and also in the mountain nowadays.