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TradeSize

Forex Lot Size Calculator
Abhijit Bhattacharyya · Finance
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App info

Developer
Abhijit Bhattacharyya
Category
Finance
Released
Oct 19, 2026
Version
1.0.1 (Oct 22, 2026)
Price
Free
Size
10.0 MB
Requires
iOS 18.0
Age rating
4+
Languages
English

In-app purchases

TradeSize Pro$3.99
TradeSize Pro$39.00
Current prices, App Store US.
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About TradeSize

Risk exactly what you planned on every trade, down to the last lot step. TradeSize is a precise position size calculator for forex and CFD traders. Enter your risk amount, entry price, stop loss and contract size, and it returns the correct lot size instantly. No spreadsheets and no mental maths before you click buy or sell. THE MATHS, DONE PROPERLY Lot size is calculated as risk divided by stop distance multiplied by contract size. The result is always rounded DOWN to your broker's lot step (0.01, 0.1 or 1), so rounding never pushes you over your risk limit. INSTRUMENTS READY TO GO Choose from 28 forex pairs plus gold, silver, major indices, oil, natural gas, Bitcoin and Ethereum. Each comes with a preset contract size, and you can adjust it to match your broker's specification. AUTOMATIC CURRENCY CONVERSION Trading a pound-denominated account on USD-quoted gold or a yen cross? When…
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