What is the maximum amount I can convert? iSTOX September 07, 2020 08:13 Updated The maximum amount accepted for the conversion is: 1,000,000.00 USD or 1,250,000.00 SGD or 750,000.00 EUR Related articles How is my exchange rate determined? What is the minimum amount I can convert? Can I buy/convert the exact amount I need to fund my investment? Do I qualify as an iSTOX investor? Do I have to be based in Singapore to register on iSTOX?