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CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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Convert  São Tomé and Príncipe Dobra (STN)  
(as of 2026-01-21 18:00:00)  1 São Tomé and Príncipe Dobra (STN) =
  ISO Currency
3.07  AFN Afghan Afghani 
3.85  ALL Albanian Lek 
6.09  DZD Algerian Dinar 
42.95  AOA Angolan Kwanza 
66.98  ARS Argentine Peso 
17.76  AMD Armenian Dram 
0.084  AWG Aruban Florin 
0.069  AUD Australian Dollar 
0.079  AZN Azerbaijani Manat 
0.047  BSD Bahamian Dollar 
0.018  BHD Bahraini Dinar 
5.73  BDT Bangladeshi Taka 
0.094  BBD Barbadian Dollar 
918.03  BYR Belarusian Ruble 
0.094  BZD Belize Dollar 
0.047  BMD Bermudan Dollar 
4.29  BTN Bhutanese Ngultrum 
0.00000052  BTC Bitcoin 
0.32  BOB Bolivian Boliviano 
0.078  BAM Bosnia-Herzegovina Convertible Mark 
0.62  BWP Botswanan Pula 
0.25  BRL Brazilian Real 
0.035  GBP British Pound Sterling 
0.06  BND Brunei Dollar 
0.079  BGN Bulgarian Lev 
138.22  BIF Burundian Franc 
190.89  KHR Cambodian Riel 
0.065  CAD Canadian Dollar 
4.44  CVE Cape Verdean Escudo 
0.084  XCG Caribbean Guilder 
0.039  KYD Cayman Islands Dollar 
26.25  XOF CFA Franc BCEAO 
26.21  XAF CFA Franc BEAC 
4.80  XPF CFP Franc 
40.98  CLP Chilean Peso 
0.001  CLF Chilean Unit of Account (UF) 
0.33  CNY Chinese Yuan 
0.33  CNH Chinese Yuan Offshore 
172.13  COP Colombian Peso 
19.77  KMF Comorian Franc 
100.94  CDF Congolese Franc 
22.93  CRC Costa Rican Colón 
0.30  HRK Croatian Kuna 
0.047  CUC Cuban Convertible Peso 
1.24  CUP Cuban Peso 
0.97  CZK Czech Republic Koruna 
0.30  DKK Danish Krone 
8.32  DJF Djiboutian Franc 
2.95  DOP Dominican Peso 
0.13  XCD East Caribbean Dollar 
2.22  EGP Egyptian Pound 
0.70  ERN Eritrean Nakfa 
7.28  ETB Ethiopian Birr 
0.04  EUR Euro 
0.035  FKP Falkland Islands Pound 
0.11  FJD Fijian Dollar 
3.44  GMD Gambian Dalasi 
0.13  GEL Georgian Lari 
0.51  GHS Ghanaian Cedi 
0.035  GIP Gibraltar Pound 
0.0000097  XAU Gold (troy ounce) 
0.36  GTQ Guatemalan Quetzal 
0.035  GGP Guernsey Pound 
409.88  GNF Guinean Franc 
9.79  GYD Guyanaese Dollar 
6.13  HTG Haitian Gourde 
1.24  HNL Honduran Lempira 
0.37  HKD Hong Kong Dollar 
15.40  HUF Hungarian Forint 
5.86  ISK Icelandic Króna 
4.29  INR Indian Rupee 
791.76  IDR Indonesian Rupiah 
1973.07  IRR Iranian Rial 
61.33  IQD Iraqi Dinar 
0.15  ILS Israeli New Sheqel 
7.36  JMD Jamaican Dollar 
7.42  JPY Japanese Yen 
0.035  JEP Jersey Pound 
0.033  JOD Jordanian Dinar 
23.73  KZT Kazakhstani Tenge 
6.04  KES Kenyan Shilling 
0.014  KWD Kuwaiti Dinar 
4.10  KGS Kyrgystani Som 
1011.24  LAK Laotian Kip 
0.028  LVL Latvian Lats 
4007.03  LBP Lebanese Pound 
0.76  LSL Lesotho Loti 
8.68  LRD Liberian Dollar 
0.30  LYD Libyan Dinar 
0.14  LTL Lithuanian Litas 
0.38  MOP Macanese Pataca 
2.47  MKD Macedonian Denar 
212.41  MGA Malagasy Ariary 
81.17  MWK Malawian Kwacha 
0.19  MYR Malaysian Ringgit 
0.72  MVR Maldivian Rufiyaa 
0.035  IMP Manx pound 
1.87  MRU Mauritanian Ouguiya 
2.15  MUR Mauritian Rupee 
0.82  MXN Mexican Peso 
0.79  MDL Moldovan Leu 
167.02  MNT Mongolian Tugrik 
0.43  MAD Moroccan Dirham 
2.99  MZN Mozambican Metical 
98.35  MMK Myanma Kyat 
0.76  NAD Namibian Dollar 
6.86  NPR Nepalese Rupee 
0.084  ANG Netherlands Antillean Guilder 
0.13  BYN New Belarusian Ruble 
1.48  TWD New Taiwan Dollar 
0.08  NZD New Zealand Dollar 
1.72  NIO Nicaraguan Córdoba 
66.44  NGN Nigerian Naira 
42.16  KPW North Korean Won 
0.47  NOK Norwegian Krone 
0.018  OMR Omani Rial 
13.11  PKR Pakistani Rupee 
0.047  PAB Panamanian Balboa 
0.20  PGK Papua New Guinean Kina 
313.50  PYG Paraguayan Guarani 
0.16  PEN Peruvian Nuevo Sol 
2.77  PHP Philippine Peso 
0.17  PLN Polish Zloty 
0.17  QAR Qatari Rial 
0.20  RON Romanian Leu 
3.61  RUB Russian Ruble 
68.01  RWF Rwandan Franc 
0.035  SHP Saint Helena Pound 
0.41  SVC Salvadoran Colón 
0.13  WST Samoan Tala 
969.46  STD São Tomé and Príncipe Dobra 
0.18  SAR Saudi Riyal 
4.70  RSD Serbian Dinar 
0.65  SCR Seychellois Rupee 
1.15  SLE Sierra Leonean Leone 
982.18  SLL Sierra Leonean Leone 
0.00051  XAG Silver (troy ounce) 
0.06  SGD Singapore Dollar 
0.38  SBD Solomon Islands Dollar 
26.74  SOS Somali Shilling 
0.76  ZAR South African Rand 
68.76  KRW South Korean Won 
28.17  SDG South Sudanese Pound 
16.25  VES Sovereign Bolivar 
0.033  XDR Special Drawing Rights 
14.50  LKR Sri Lankan Rupee 
1.79  SRD Surinamese Dollar 
0.77  SZL Swazi Lilangeni 
0.43  SEK Swedish Krona 
0.037  CHF Swiss Franc 
518.01  SYP Syrian Pound 
0.44  TJS Tajikistani Somoni 
119.44  TZS Tanzanian Shilling 
1.47  THB Thai Baht 
0.11  TOP Tongan Paʻanga 
0.32  TTD Trinidad and Tobago Dollar 
0.14  TND Tunisian Dinar 
2.03  TRY Turkish Lira 
0.16  TMT Turkmenistani Manat 
161.97  UGX Ugandan Shilling 
2.02  UAH Ukrainian Hryvnia 
0.17  AED United Arab Emirates Dirham 
0.047  USD United States Dollar 
1.80  UYU Uruguayan Peso 
567.92  UZS Uzbekistan Som 
5.66  VUV Vanuatu Vatu 
1230.21  VND Vietnamese Dong 
11.16  YER Yemeni Rial 
0.94  ZMW Zambian Kwacha 
421.60  ZMK Zambian Kwacha (pre-2013) 
15.08  ZWL Zimbabwean Dollar 
Glossary
CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.