CostDepth launches free tool that counts spreads, slippage, not just fees, across 17 crypto exchanges

CostDepth.io has launched a free tool that estimates what a crypto trade will cost across 17 exchanges, including Binance, Bybit, OKX and Hyperliquid, by combining published fee schedules with live order book data, according to a press release dated November 7, 2026. The company says the tool estimates fees, bid-ask spreads and slippage and does not require sign-up.

Crypto Trading Cost Calculator goes beyond exchange trading fees

Traditional exchange comparison tools generally focus on maker and taker fees, which represent the charges applied when traders provide or take liquidity from an exchange’s order book.

However, these figures do not account for the full cost of executing a trade. Market orders can incur additional expenses through bid-ask spreads and slippage, particularly when available liquidity is insufficient to accommodate an order at the expected price.

CostDepth’s Crypto Trading Cost Calculator incorporates these additional factors into its calculations, allowing users to estimate how much a trade could cost before execution.

Users can enter an order size, select either spot or futures trading, specify a buy or sell position, and choose between market and post-only orders. The platform then presents estimated trading fees, spreads and slippage, alongside the total projected cost in dollar and percentage terms.

According to the announcement, the calculator retrieves publicly available order book information and refreshes its live data every 20 seconds while users access the platform.

Each calculation also displays the date and time of the underlying market data, giving users an indication of how recently the information was collected.

A ranking system on the homepage compares all 17 supported exchanges based on their estimated total trading costs for comparable order sizes. Traders can also use a separate comparison feature to examine two exchanges side by side.

CostDepth adds VIP fee tiers and futures funding estimates

Beyond its primary comparison features, the latest Crypto Trading Cost Calculator update introduces additional tools aimed at traders with different account levels and trading strategies.

One addition is a fee-level selector covering VIP 1, VIP 2 and VIP 3 tiers where official exchange information is available. This allows eligible users to examine how different fee structures could affect their estimated trading expenses.

CostDepth said it identifies unverified fee information as “checking” rather than presenting unsupported figures as confirmed exchange rates.

The platform has also introduced a holding-period option for futures traders. The feature estimates potential funding payments or receipts using funding rates available from the supported exchanges.

Funding rates are periodic payments exchanged between traders holding long and short perpetual futures positions. Depending on market conditions and the direction of the rate, these payments can increase or reduce the overall cost of maintaining a position.

By incorporating estimated funding expenses, the Crypto Trading Cost Calculator extends its comparison beyond the initial execution of a futures order.

A CostDepth spokesperson said the platform was designed to address the difference between advertised trading fees and actual execution expenses.

“Traders compare fees, but the fee is only part of what an order costs,” the spokesperson said. “We wanted one place where you type your order size and see the real number, from live data, with the time it was taken. No sign-up, and every figure can be checked.”

Historical data and public API expand CostDepth’s offering

In addition to its live comparison features, CostDepth provides historical order book snapshots for Bitcoin (BTC) and Ethereum (ETH).

The historical dataset covers order sizes ranging from $1,000 to $1 million, with hourly averages calculated to help users examine how trading expenses change throughout the day.

This could provide additional context for traders researching market liquidity and execution conditions across different trading periods.

The Crypto Trading Cost Calculator also incorporates exchange fee information sourced from official fee schedules, with verification dates displayed alongside the relevant fee tables.

For developers and researchers, CostDepth makes its data accessible through a free public application programming interface (API) and downloadable CSV files. These resources allow users to examine the underlying information beyond the platform’s comparison interface.

CostDepth says its calculator is free to access and does not require account registration. Users can explore the available exchange comparisons through its official website, www.costdepth.io.

However, the company discloses that it may earn commissions when visitors register through referral links on its website. It also states that referral discounts are excluded from its trading cost calculations.

The platform cautions that cryptocurrency and futures trading carry significant financial risks, including the potential loss of capital, and that its information is intended for informational purposes rather than financial advice.