Limit vs Market Cost Calculator
For one buy, compare the fee-inclusive total cost if filled at a limit price versus a market price.
Results
Fill in the inputs and click Calculate.
- Limit Total Cost
- –
- Market Total Cost
- –
- Savings
- –
- Savings %
- –
Risk disclaimer
Both fill prices are assumptions; non-fill and waiting costs are ignored.
What does this compute?
Total cost = price × quantity × (1 + fee%). A limit usually fills lower but may wait or never fill.
Savings = market cost − limit cost; it only matters if both fills are plausible.
How to use
- Enter the assumed limit fill and the market estimate.
- Enter quantity and the one-side fee (%).
- Click Calculate to compare the two costs.
Formula
- Cost = price × qty × (1 + fee%)
- Savings = market cost − limit cost
Example
Limit 100 vs market 101, qty 1 at 0.1% → savings ≈ 1.001.
Slippage and opportunity cost of not filling are excluded.
FAQ
Will the limit always fill?
No — price may never reach it. Treat the fill price as an assumption.