Lot Size Converter
Standard, mini, micro, units — instantly.
Every forex broker uses slightly different conventions for lot sizing. This tool converts between standard lots (100,000 units), mini lots (10,000), micro lots (1,000), and raw currency units so you always know exactly what size you're taking.
On a standard lot of a USD-quote pair (EUR/USD, GBP/USD, AUD/USD), 1 pip ≈ $10. On a mini lot, ~$1. On a micro lot, ~$0.10. Use the Pip Value Calculator for other pairs.
What it is
A lot is the unit of trade size in forex. The three standard lot types are: standard (100,000 units of the base currency), mini (10,000 units), and micro (1,000 units). Some brokers quote trades in 'lots' where 1 = standard, 0.1 = mini, 0.01 = micro. Others quote in raw units. This converter eliminates the confusion so you enter the right number in the right field.
When to use it
Whenever you switch brokers (different platforms use different defaults), whenever you're following a trade idea that specifies size differently than your platform expects, and whenever you want to double-check that your 0.37 lots actually means what you think it means.
The formula
Standard lot = 100,000 units of base currency Mini lot = 10,000 units (0.1 standard) Micro lot = 1,000 units (0.01 standard) Conversions: 1 standard lot = 10 mini lots = 100 micro lots = 100,000 units 0.1 standard = 1 mini = 10 micro = 10,000 units 0.01 standard = 0.1 mini = 1 micro = 1,000 units
How to use it
- 1. Enter the size you know
Whichever unit your trade idea or strategy is quoted in. If someone says '2 mini lots,' pick 'Mini lots' and enter 2.
- 2. Read the equivalents
The tool shows the same position size in all four units simultaneously. Use whichever row matches your broker's input field.
- 3. Verify against your broker
Most MT4/MT5 platforms use 'lots' where 1 = standard. cTrader often uses raw units. Check your platform's 'volume' field to see which convention it uses.
Common mistakes
- ✗Confusing 0.1 lots with 0.01 lots. This is a 10x sizing error. The desk has seen traders blow up accounts on this single mistake.
- ✗Assuming every broker uses the same default. Some brokers default to mini, some to micro, some ask in raw units. Always verify.
- ✗Copying a trade idea without converting. If a strategy says '1 lot' and you enter 1 into a broker that uses raw units, you just bought 1 unit — not 100,000. Or worse, the reverse.