Calculate.
Don't guess.
Six calculators built for funded traders. Lot size, drawdown, risk/reward, position sizing, daily loss tracking. Pre-loaded with rules from FTMO, The5ers, Topstep and 5 more firms.
Lot Size
MOST USEDRisk % + stop loss = exact lot size
INPUT
$10k / 1% / 50 pips
OUTPUT
0.20 lots
Drawdown
Track how close you are to the limit
INPUT
$100k start / $95k now
OUTPUT
5.0% DD
Risk/Reward
R:R ratio + break-even win rate
INPUT
Entry 1.10 / SL 1.095 / TP 1.11
OUTPUT
1:2.0
Position Size
Units and lots from price levels
INPUT
$10k / 1% / 50 pip SL
OUTPUT
20,000 units
Daily Loss
LIVELive tracker with trade-by-trade input
INPUT
FTMO $100k account
OUTPUT
$5,000 limit
Compare Firms
8 prop firms side by side
INPUT
FTMO vs Topstep vs E8
OUTPUT
Full table
PRE-LOADED FIRMS
Rules auto-fill when you pick a firm
No accounts
Everything runs client-side. No sign-up, no data stored on any server.
Real-time
Results update as you type. No "calculate" button to click.
Mobile ready
Use on your phone while trading. Designed for one-handed input.
Ready to start your prop firm challenge?
Free Prop Firm Trading Calculators
Verifex Tools provides free, professional-grade calculators designed specifically for prop firm traders. Whether you're preparing for an FTMO challenge, managing a The5ers funded account, or comparing prop firm rules before you buy, our tools help you trade with precision and discipline.
Why Proper Position Sizing Matters in Prop Trading
The #1 reason traders fail prop firm challenges is poor risk management. Oversized positions trigger daily loss limits within a few bad trades. Our lot size and position size calculators ensure you never risk more than your chosen percentage, keeping you safe within FTMO's 5% daily loss limit or Topstep's 3% daily loss rule.
Comparing Prop Firms in 2026
The prop trading industry has grown dramatically — but not all firms are equal. Use our comparison table to evaluate FTMO ($155 min, 90% split), The5ers ($95 min, 80% split), Topstep ($99 min, 90% split), and 5 more firms side-by-side. Filter by maximum funding, profit split, and price to find the right fit.