Nilai tukar suatu mata uang atau biasanya di sebut dengan nilai kurs, pada dasarnya adalah tergantung pada prinsip ''{{lang|en|supply}}'' (penawaran) dan ''{{lang|en|demand}}'' (permintaan). Makin tinggi permintaannya, makin tinggi pula nilai tukarnya. Tetapi sebaliknya, penawaran yang lebih banyak dibandingkan dengan permintaan akan menyebabkan nilai tukar mata uang suatu negara menjadi rendah.
== Daftar mata uang termurahdengan nilai tukar paling rendah di dunia ==
{|class="wikitable"
! No. !! Negara !! [[Mata Uang]]Nama !! [[ISO 4217|Kode 4217 ISO]] !! Simbol !! Nilai Tukar PerKe 1[[Dolar USDAmerika|US$]]<ref>{{cite web|title=www.fxssi.com/top-10-of-the-weakest-world-currencies-in-current-year}}</ref> !! Nilai Tukar Ke [[Rupiah<ref>{{cite web|url=Rupiahhttps://www.bi.go.id/id/statistik/informasi-kurs/transaksi-bi/default.aspx}}</ref>Rp]]
|-
|1. || {{VEN}} || [[Bolívar Venezuela|Bolívar]] || VEF || Bs || 5641 Dolar AS = 3.640543.100 Bolívar Venezuela || 1 BolivarBolívar Venezuela = 0,0200434988 Rupiah Indonesia
|-
|2. || {{IRN}} || [[Rial Iran|Rial]] || IRR || ﷼ || 1 Dolar AS = 42.224044 Rial Iran || 1 Rial Iran = 0,3536 Rupiah Indonesia
|-
|3. || {{VNM}} || [[Đồng Vietnam|Đồng]] || VND || đ || 231 Dolar AS = 24.324407 Đồng Vietnam || 1 Đồng Vietnam = 0,63 Rupiah Indonesia
|-
|4. || {{LAOSLE}} || [[KipLeone Sierra Leone]] || LAKSLL || ₭Le || 151 Dolar AS = 22.116600 Leone Sierra Leone || 1 KipLeone LaosSierra Leone = 0,9868 Rupiah Indonesia
|-
|5. || {{INALAO}} || [[RupiahKip Laos]] || IDRLAK || Rp₭ || 141 Dolar AS = 20.846643 Kip Laos || —1 Kip Laos = 0,74 Rupiah Indonesia
|-
|6. || {{SLEINA}} || [[LeoneRupiah Indonesia]] || SLLIDR || LeRp || 131 Dolar AS = 15.880412 Rupiah Indonesia || 1 Leone Sierra LeoneRupiah = 10,07000064 RupiahDolar AS
|-
|7. || {{UZB}} || [[Soʻm Uzbekistan|Som]] || UZS || сум || 101 Dolar AS = 12.935321 Soʻm Uzbekistan || 1 Som Uzbekistan = 1,3525 Rupiah Indonesia
|-
|8. || {{GIN}} || [[Franc Guinea|Franc]] || GNF || FG || 1 Dolar AS = 8.649591 Franc Guinea || 1 Franc Guinea = 1,79 Rupiah Indonesia
| 1 Franc Guinea = 1,71 Rupiah
|-
|9. || {{PRY}} || [[Guaraní Paraguay|Guaranì]] || PYG || ₲ || 61 Dolar AS = 7.887439 Guaraní Paraguay || 1 Guaraní Paraguay = 2,1507 Rupiah Indonesia
|-
|10. || {{COLCAM}} || [[PesoRiel Kolombia|PesoKamboja]] || COPKHR || $៛ || 1 Dolar AS = 4.246116 Riel Kamboja || 1 PesoRiel KolombiaKamboja = 3,4974 Rupiah Indonesia
|-
|11. || {{MAD}} || [[Ariary Madagaskar|Ariary]]|| MGA || Ar || 4.211 || 1 Ariary Madagaskar = 3,52 Rupiah
|-
|12. || {{CAM}} || [[Riel Kamboja|Riel]]|| KHR || ៛ || 4.095 || 1 Riel Kamboja = 3,62 Rupiah
|-
|13. || {{UGA}} || [[Shilling Uganda|Shilling]] || UGX || USh || 3.867 || 1 Shilling Uganda = 3,83 Rupiah
|-
|14. || {{TAN}} || [[Shilling Tanzania|Shilling]] || TZS || TSh || 2.331 || 1 Shilling Tanzania = 6,36 Rupiah
|-
|15. || {{DRC}} || [[Franc Kongo|Franc]] || CDF || FC || 2.002 || 1 Franc Kongo = 7,41 Rupiah
|-
|}
== MataDaftar mata uang yang paling banyak beredar di dunia ==
{|class="wikitable"
! No. !! Mata UangNama !! KodeISO 4217 ISO !! Simbol !! Proporsi peredaran harian, April 2019<ref>{{cite web|title=Triennial Central Bank Survey Foreign exchange turnover in April 2019 (PDF). Bank for International Settlements. 16 September 2019. p. 10. Retrieved 16 September 2019.}}</ref>
|-
|1. || {{flagicon|USA}} [[Dolar Amerika Serikat]] || USD || US$ || 88,3%
|