How much is the 1xBit welcome bonus in dollars?

There is no stable answer, because the cap is 1 BTC rather than a fixed sum. The useful figure is the ratio: at 40x on the bonus, every $100 of bonus costs about $160 in expected house edge to clear, so you expect to be roughly $60 down per $100 taken.

How do I calculate cost per unit of bonus myself?

Multiply the wagering multiplier by 0.04 (the house edge at 96% RTP). That is the cost of clearing one unit of bonus. Subtract it from 1 to get what you keep. At 40x: 40 × 0.04 = 1.6, so you keep −0.6 — a loss of 60% of the bonus.

What multiplier would break even?

25x on the bonus alone, at 96% RTP. No deposit match in our comparison reaches it. FortuneJack’s 30x is the closest at about −$20 per $100 of bonus.

Does 1xBit apply wagering to the deposit as well?

No source we found states it, and their terms page refuses automated requests. On the bonus alone the offer costs about $60 per $100; on deposit plus bonus about $220. Find that sentence before depositing.

Why a Bonus Capped in Bitcoin Has No Dollar Value

Search for the 1xBit welcome bonus and you will find it quoted in dollars, in euro, and in pounds, at figures that do not agree with each other. None of them is wrong exactly. The cap is one bitcoin, so every fiat number is a snapshot of a price on a day nobody recorded — and the honest way to describe an offer like that is not a headline at all.

A cap in BTC is not an amount of money

1xBit matches your first deposit 100%, up to 1 BTC. That ceiling is a quantity of bitcoin, not a sum. What it is worth in any currency depends entirely on the day you look.

A listing that prints “up to $X” has silently frozen an exchange rate at the moment it was written and will not update when the rate moves. It reads as a term of the offer and it is actually a stale quote. Several sites in this market carry figures years out of date this way.

The same applies to mBit, FortuneJack, TrustDice and Cryptorino, all of which cap in BTC. It is common enough in crypto casinos to be worth having a method for.

Measure the ratio instead

There is a number that does not move with the bitcoin price, and it happens to be the number that decides whether an offer is worth taking: the cost of clearing one unit of bonus.

The arithmetic is short. A multiplier of m applied to the bonus means each unit of bonus requires m units of turnover. Turnover costs about 4% of itself in house edge at 96% RTP. So clearing one unit of bonus costs m × 0.04 units, and you keep 1 − 0.04m.

At 1xBit’s 40x that is 1 − 1.6 = −0.6. For every $100 of bonus you take, expect to be about $60 down by the time it is cleared. The figure holds whether bitcoin is at $30,000 or $300,000, and it scales linearly — a bonus ten times larger loses ten times as much.

Where every multiplier lands

Because the ratio is currency-free, it makes offers comparable across operators that quote in different units:

Multiplier (on the bonus)	Turnover per $100 of bonus	Cost	You keep
30x — FortuneJack	$3,000	~$120	−$20
35x — Crashino, TrustDice (disputed)	$3,500	~$140	−$40
40x — 1xBit, mBit	$4,000	~$160	−$60
45x — Bspin, Fairspin	$4,500	~$180	−$80
66x — Cryptorino (worst reading)	$6,600	~$264	−$164

Break-even needs 0.04m = 1, so a multiplier of 25x on the bonus. Nothing in this market offers that on a deposit match, which is the short answer to why every row is negative.

The basis still doubles it

The table above assumes the multiplier applies to the bonus alone. No source we could reach states which basis 1xBit uses, and their terms page refuses automated requests.

If it applies to deposit plus bonus, the base doubles on a 100% match: $8,000 of turnover per $100 of bonus, about $320 of cost, and a net of about −$220 rather than −$60. That single unstated word is worth more than the entire bonus. The Bspin article is about exactly this problem.

We publish the bonus-only reading as the headline and the deposit-plus-bonus figure alongside it, and we do not pretend to know which is live.

What is genuinely good here

The window is 30 days, which is four times what Crashino allows and ten times Fairspin’s. Running out of time is what defeats most bonus attempts, and a long window is worth more than it looks on a comparison table.

The coin list is among the widest in this market — BTC, ETH, LTC, DOGE, XRP, USDT, ADA and SOL — so an unusual holding is more likely to be depositable directly.

One correction worth stating: our own earlier record described this offer as 125% up to 1 BTC across four deposits at 35x. The research pass recorded the first deposit as 100% at 40x over 30 days, and we use that. The current figure is worse for the player than the one it replaced, which is the direction we always resolve a disagreement in.