The Nepalese rupee is linked to Indian Rupee, that is, the exchange rate of the two rupees is fixed at 1: 1.6. Once the exchange rate between Indian Rupee and the US dollar or RMB fluctuates, the exchange rate between Nepalese rupee and them will also fluctuate. Since Nepal's top political leaders have basically returned from studying in India, the political and economic systems of these two countries, including language and language science education, are a bit like the relationship between teachers and students. The relationship between the two countries is very close, and citizens of both sides can travel freely. In Nepal, except for large denomination banknotes, Indian Rupee can circulate.
In Zhangmu, the border of Tibet, and Kathmandu and Boccara, where tourists are most concentrated, you can find people who exchange RMB (this form is only available in Zhangmu Town) and small money exchange shops (Tangmei District in Kathmandu and Fiwa Lake in Boccara). In these two places in Nepal, most travel agencies, hotels, restaurants, bars and shops can use all kinds of credit cards, including visa international cards, and local banks can exchange major foreign currencies or traveler's checks for you. So you don't have to worry about currency exchange at all here.
The official exchange rate of Nepalese rupee with RMB fluctuates around 9: 1, and the exchange rate with US dollar generally fluctuates around 75: 1. The above is my answer to your question, I hope it will help you.