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.
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.
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 2026-07-22. 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.
| Exchange | Interval | Per day | Annualised |
|---|---|---|---|
| Binance | 8h | 3.00 | 10.95 % |
| Bybit | 8h | 3.00 | 10.95 % |
| OKX | 8h | 3.00 | 10.95 % |
| Gate.io | 8h | 3.00 | 10.95 % |
The same calculation on other exchanges
Margin ladders differ enough to move the liquidation price on identical inputs.
Or use the generic calculator with your own maintenance rate →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.