# Real size for Forex Quant1

**URL:** <https://forums.collective2.com/t/real-size-for-forex-quant1/2965>\
**Category:** C2\
**Created:** [November 15, 2010, 7:15pm UTC](https://forums.collective2.com/t/real-size-for-forex-quant1/2965 "2010-11-15T19:15:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![SungtaeYOO](https://yyz2.discourse-cdn.com/flex028/user_avatar/forums.collective2.com/sungtaeyoo/32/1487_2.png) [@SungtaeYOO](https://forums.collective2.com/u/SungtaeYOO)\
**Post date:** [November 15, 2010, 7:15pm UTC](https://forums.collective2.com/t/real-size-for-forex-quant1/2965/1 "2010-11-15T19:15:59Z")

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Hi,  
  
  
  
How can I calculate real size for Forext Quant1? If base currency is USD then the real size is 10,000. But what if base currency is JPY? For example, 1 quant for USD/JPY, what should be real size? I’m using IB and autotrading with TradeBullet. and when it got signal to buy 1 quant USD/JPY, it actually bought 10,000 USD/JPY. I don’t think this is right(It’s ok for now since this is paper trading account). Can anyone let me know how to solve this?  
  
  
  
Thanks.