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Cost Drag Calculator

Estimate a flat monthly cost run-rate from your execution assumptions. The calculation keeps fees, turnover, slippage and funding visible; it does not forecast returns.

Set the assumptions

Use your own average execution costs. A “round trip” means one entry and one exit.

Starting account sizeUSDT · range 100 to 100,000,000

Round trips per monthtrades · range 0 to 100,000

Average position notionalCan exceed 100% when the model uses borrowed exposure. % of account · range 0 to 1,000

Assumed position sideFunding is signed for this side; see the standard funding convention below.

Maker fee per fillEnter the fee rate from your venue schedule. basis points · range 0 to 500

Taker fee per fillEnter the fee rate from your venue schedule. basis points · range 0 to 500

Taker share of fills

Slippage per fillbasis points · range 0 to 5,000

Funding rate per intervalEnter the exchange funding rate using its stated sign convention. basis points · range -5,000 to 5,000

Funding intervals per round tripEstimate how many settlements occur while each position is open. intervals · range 0 to 1,000

Estimated net cost per month

90.00 USDT

+0.90% of starting account value each month

Trading fees / month75.00 USDT
Slippage / month0.00 USDT
Net funding / month15.00 USDT
Position notional2,500.00 USDT
Net cost per round trip3.00 USDT
Annual run-rate1,080.00 USDT
All-in net rate per round trip12 bps

This is a flat-cost estimate, not a return forecast. It assumes unchanged position size and trade count each month; it does not compound the account or model market impact. Funding is signed for the selected long position.

Turnover sensitivity

See how the same per-trade assumptions scale when monthly round trips change. These are arithmetic scenarios, not trade forecasts.

Scenario	Average round trips / month	Net cost / month	Starting capital drag
0.5× current turnover	15	45.00 USDT	+0.45%
Current turnover	30	90.00 USDT	+0.90%
2× current turnover	60	180.00 USDT	+1.80%

Calculation

Average fee per fill = maker fee × maker share + taker fee × taker share. Monthly net cost = position notional × monthly round trips × [2 × average fee per fill + 2 × slippage per fill + signed funding rate × funding intervals] ÷ 10,000. For the standard perpetual convention, positive funding is paid by longs and received by shorts; the selected side reverses the funding contribution. Check the convention used by your venue. Funding credits can reduce net costs or create a net credit. Defaults are illustrative, not exchange fee guidance.

These tools explain calculations and historical evidence under the assumptions shown. They are not forecasts, trading advice or proof of future performance.