Futures Calculator
BTC-USDT-SWAP

OKX Funding Calculator

What a BTC-USDT-SWAP perpetual costs to hold on OKX, per interval and per year.

Funding is the rent on a perpetual position, and it is charged whether the trade is working or not. This page uses OKX's settlement interval and published rate cap for BTC-USDT-SWAP, so the annualised figure reflects how OKX actually settles rather than a generic three-a-day assumption.

OKX funding schedule for BTC-USDT-SWAP

OKX settles funding on BTC-USDT-SWAP every 8 hours (3 a day) and caps a single settlement at 0.38 %. The rate itself is set by the market and changes each interval; this page prices the rate you enter rather than reading the live one. Parameters checked on 2026-08-07.

Run it on your own position ↓
This page does not show the live rate
The calculator prices the rate you enter — it does not read the current OKX funding rate, and nothing here updates on its own. Take the rate for BTC-USDT-SWAP from the OKX contract page and type it into the field above; the settlement interval and cap below are OKX's published parameters.
Total funding
−90 $
Annualised
-10.95 %
at this rate, compounding ignored
Per settlement
−1 $
Per day
−3 $
Settlement interval
8h
8h on OKX — 3 payments a day
Rate cap
0.38 %
the most one settlement can charge
Payments
90
Position value
10,000 $

How it works

OKX settles funding every 8 hours — 3 times a day, or 1095 times a year. Funding is exchanged between traders, not paid to the venue: when the rate is positive longs pay shorts, and when it is negative the flow reverses.

The annualised number is the one worth looking at before opening a carry. A rate that looks negligible per settlement compounds into a serious drag: 0.01% three times a day is about 11% a year, and rates of ten times that are ordinary during a squeeze.

cost = notional × rate × intervals

Sources — OKX documentation

Every rate and formula on this page is taken from OKX's own documentation for BTC-USDT-SWAP and was last checked on 2026-08-07. Exchanges revise these tables without notice.

Independent tool, not affiliated with or endorsed by OKX. Confirm against your position's own margin details before trading.

Settlement intervals across exchanges

The same 0.01 % rate on a 10,000 position, priced under each venue's schedule.

ExchangeIntervalPer dayAnnualised
Binance8h3.0010.95 %
Bybit8h3.0010.95 %
OKX8h3.0010.95 %
Gate.io8h3.0010.95 %
Hyperliquid1h24.0087.60 %

The same calculation on other exchanges

Margin ladders differ enough to move the liquidation price on identical inputs.

Funding on OKX

OKX settles perpetual swap funding at fixed intervals, with the rate computed from the gap between the contract price and its index. What distinguishes OKX is that the cap is not one site-wide number: different instruments carry different limits, so the worst case on one contract is not the worst case on another.

Caps vary by instrument

Most venues publish a single funding cap and apply it everywhere. OKX sets the limit per instrument, with wider bands where the basis is expected to be more volatile. A trader who learned the cap on BTC and assumes it holds for a smaller altcoin swap is working from the wrong number.

The figure on this page is the one published for this symbol. For anything else on the venue, read the cap off that instrument's own specification rather than assuming the same ceiling.

Funding and the margin ratio interact

OKX measures liquidation against a margin ratio that already includes the maintenance requirement and the liquidation fee. Funding payments reduce the numerator of that ratio directly, so a sustained run of adverse funding tightens the distance to liquidation in a market that is going nowhere.

This is the quiet way leveraged carry positions die — not on a move, but on a slow bleed of margin that eventually leaves no room for an ordinary fluctuation.

FAQ

What determines the OKX funding rate?

The premium of the swap over its index, averaged across the interval, plus an interest component, then clamped to the instrument's cap. It is a formula applied to the market's own pricing, not a number OKX chooses.

Is funding charged on contracts or on notional?

On notional value, which for BTC-USDT-SWAP is contracts × 0.01 BTC × mark price. Entering size in the base asset on this page avoids the factor-of-a-hundred error that contract counts invite.

Does portfolio margin change how funding works?

The calculation is unchanged, but what it is charged against differs: under portfolio margin the payment hits account equity, and its effect on your risk is netted across the whole book rather than isolated to one position.