Acheter Bitcoin(BTC)

Acheter Bitcoin facilement grâce à notre guide étape par étape.
Prix estimé
1 BTC0,00 USD
Bitcoin
BTC
Bitcoin
$87 372,1
-0.37%
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Comment acheter Bitcoin(BTC) avec USD ?

Entrez le montant
Sélectionnez la paire de trading BTC/USD et saisissez le montant d’achat.
Confirmer l'ordre
Vérifiez les détails de la transaction, y compris le prix BTC/USD, les frais et autres informations. Une fois confirmé, soumettez l’ordre.
Recevoir Bitcoin(BTC)
Après un paiement réussi, le BTC acheté sera automatiquement crédité sur votre portefeuille Gate.com.

Comment acheter Bitcoin(BTC) avec une carte de crédit ou une carte de débit ?

  • 1
    Créez votre compte Gate.com et vérifiez votre identitéPour acheter BTC en toute sécurité, commencez par créer un compte Gate.com et terminez la vérification d’identité KYC afin de protéger vos transactions.
  • 2
    Choisissez BTC et le mode de paiementAllez dans la section « Acheter Bitcoin(BTC) », sélectionnez BTC, saisissez le montant que vous souhaitez acheter, puis choisissez la carte de débit comme option de paiement. Ensuite, renseignez les informations de votre carte.
  • 3
    Recevez BTC instantanément dans votre portefeuilleUne fois que vous avez confirmé l’ordre, le BTC acheté sera immédiatement et en toute sécurité crédité sur votre portefeuille Gate.com — prêt à être tradé, conservé ou transféré.

Pourquoi acheter Bitcoin(BTC) ?

Qu'est-ce que le Bitcoin ? La naissance de l'or numérique décentralisé
Le Bitcoin (BTC) a été introduit en 2008 par Satoshi Nakamoto et officiellement lancé en 2009 comme la première cryptomonnaie décentralisée au monde. Il permet des paiements électroniques de pair à pair, sans l’intervention d’intermédiaires comme les banques ou les gouvernements. Toutes les transactions sont enregistrées sur une blockchain publique, garantissant transparence et sécurité.
Comment fonctionne le Bitcoin ? Consensus PoW et technologie blockchain
Le Bitcoin fonctionne selon un mécanisme de consensus appelé preuve de travail (Proof of Work – PoW). Lorsqu’Alice souhaite envoyer 1 BTC à Bob, les mineurs entrent en compétition pour résoudre des problèmes mathématiques complexes. Le premier à y parvenir reçoit une récompense en bitcoins (block reward) et enregistre la transaction sur la blockchain. Ce système sécurise le réseau, mais entraîne une consommation d’énergie élevée et une difficulté de minage croissante.
L’offre de Bitcoin et le mécanisme de halving
L’offre de Bitcoin est strictement limitée à 21 millions d’unités, ce qui en fait un actif à la rareté absolue. Tous les quatre ans, un événement appelé “halving” réduit de moitié la récompense versée aux mineurs, ralentissant ainsi l’émission de nouveaux bitcoins. Ce mécanisme renforce les propriétés anti-inflationnistes de Bitcoin et constitue l’un des principaux moteurs de son appréciation à long terme. Fin 2024, plus de 19,7 millions de bitcoins ont déjà été minés.
Historique des prix et impact sur le marché
Le Bitcoin a commencé avec une valeur quasi nulle, atteignant environ $20,000 in 2017 and hitting new highs above $60 000 en 2021. Il a connu une volatilité extrême — comme en témoigne le célèbre “Bitcoin Pizza Day”, marquant sa première utilisation commerciale. Bien qu’il ait été qualifié de bulle ou d’arnaque dans le passé, l’adoption croissante par le grand public et les institutions a propulsé sa capitalisation au-delà de 1 000 milliards de dollars.
Raisons d’investir dans le Bitcoin et risques associés
Couverture contre l’inflation et réserve de valeur : L’offre fixe et les événements de halving font du Bitcoin un or numérique et un actif refuge potentiel. Forte liquidité : Le BTC est négocié sur toutes les principales plateformes, permettant une allocation facile du portefeuille. Décentralisation et autonomie : Non contrôlé par une entité centrale ; les utilisateurs gardent un contrôle total sur leurs actifs. Risques techniques et réglementaires : Forte volatilité, réglementation incertaine, préoccupations environnementales liées au minage, et utilité limitée pour les paiements.
Points de vue sceptiques et perspectives alternatives
Malgré son caractère révolutionnaire, le Bitcoin reste peu efficace en tant qu’outil de paiement, et les risques réglementaires demeurent importants. Certains experts considèrent le Bitcoin davantage comme un actif spéculatif que comme une réserve de valeur stable. Les investisseurs doivent évaluer attentivement leur tolérance au risque.

Bitcoin(BTC) Prix du jour & tendances du marché

BTC/USD
Bitcoin
$87 372,1
-0.37%
Marchés
Popularité
Capitalisation boursière
#1
$1,74T
Volume
Offre en circulation
$1,44B
19,96M

À l’heure actuelle, Bitcoin (BTC) est au prix de $87 372,1 par actif. L’offre en circulation est d’environ 19 968 959 BTC, ce qui correspond à une capitalisation boursière totale de $19,96M. Classement actuel par capitalisation : 1.

Au cours des dernières 24 heures, le volume d’échange de Bitcoin a atteint $1,44B, soit une -0.37% par rapport à la veille. Sur la dernière semaine, le prix de Bitcoin -1.48%, reflétant la demande soutenue pour BTC en tant qu’or numérique et couverture contre l’inflation.

De plus, le record historique de Bitcoin a été de $126 080. La volatilité du marché reste importante, et les investisseurs doivent suivre de près les tendances macroéconomiques ainsi que les évolutions réglementaires.

Bitcoin(BTC) Comparer avec une autre cryptomonnaie

BTC VS
BTC
Prix
Pourcentage de variation sur 24 heures
7d Pourcentage de changement
Volume de trading 24h
Capitalisation boursière
Rang du marché
Offre en circulation

Que faire après avoir acheté Bitcoin(BTC) ?

Spot
Tradez BTC à tout moment grâce à la large gamme de paires de trading de Gate.com, saisissez les opportunités du marché et faites croître vos actifs.
Simple Earn
Utilisez vos BTC inactifs pour souscrire aux produits financiers flexibles ou à terme fixe de la plateforme et gagnez facilement un revenu supplémentaire.
Convertir
Échangez rapidement vos BTC contre d’autres cryptomonnaies en toute simplicité.

Avantages d’acheter Bitcoin via Gate

Avec 3 500 cryptomonnaies parmi lesquelles vous pouvez choisir
Classé parmi les 10 principaux CEX depuis 2013
Preuve de réserves à 100 % depuis mai 2020
Trading efficace avec dépôt et retrait instantanés

Autres cryptomonnaies disponibles sur Gate

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Prévision du prix du BTC à la fin de l’année 2025 : les 100 prévisions les plus précises remportent 20 $
Gate Web3 Wallet lance un défi spécial de prédiction du « cours de clôture du BTC en fin d’année ». Il vous suffit d’effectuer une transaction sur l’application Gate et de soumettre votre prévision pour tenter de remporter des récompenses en USDT selon la justesse de votre estimation.
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Cryptocurrency Exchange-Traded Funds (ETFs) have become a cornerstone for investors seeking exposure to digital assets without the complexities of direct ownership. Following the landmark approval of spot Bitcoin and Ethereum ETFs in 2024, the crypto ETF market has exploded, with $65 billion in inflows and Bitcoin surpassing $100,000. As 2025 unfolds, new ETFs, regulatory developments, and institutional adoption are set to drive further growth. This article highlights the top crypto ETFs to watch in 2025, based on assets under management (AUM), performance, and innovation, while offering insights into their strategies and risks.
Plus de contenu BTC Wiki

Les dernières nouvelles sur Bitcoin(BTC)

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ZBT 在价格上涨54.5%后,仍然保持在 $0.09421 支持位之上
Plus d'actualités BTC
With 2025 getting closer and closer, the cryptocurrency market's gains this year have almost been completely wiped out. Looking back, Bitcoin was still shining at a record high of $126,000 in early October, but the market suddenly turned around, and the total market capitalization of digital assets evaporated by about $1 trillion over the past few months.
The turning point came in mid-October. After Trump announced an upgrade to tariffs, the crypto market exploded with $19 billion in liquidations within 24 hours—this set a new record. Ethereum followed closely, dropping about 40% within a month, and even some well-known crypto companies under prominent figures saw their market values significantly shrink.
Interestingly, although the Trump administration appears to be "pro-crypto" overall, analysts point out that what really hit the market wasn't policy expectations, but rather tariff conflicts, macroeconomic tightening, and the chain reaction of liquidations of high-leverage positions. In November, Bitcoin even fell below $81,000, marking the largest monthly decline since 2021. Currently, the price hovers around $90,000.
Industry insiders warn that the market may be entering a new "winter," but some institutions believe this is just a normal correction within Bitcoin's four-year cycle. More notably, BlackRock CEO Larry Fink and the CEO of a major platform have publicly stated that, in the long term, institutional funds are still flowing in continuously, and crypto assets are moving from the gray area into the main stage of traditional finance.
BlockchainDecoder
2025-12-29 23:20
With 2025 getting closer and closer, the cryptocurrency market's gains this year have almost been completely wiped out. Looking back, Bitcoin was still shining at a record high of $126,000 in early October, but the market suddenly turned around, and the total market capitalization of digital assets evaporated by about $1 trillion over the past few months. The turning point came in mid-October. After Trump announced an upgrade to tariffs, the crypto market exploded with $19 billion in liquidations within 24 hours—this set a new record. Ethereum followed closely, dropping about 40% within a month, and even some well-known crypto companies under prominent figures saw their market values significantly shrink. Interestingly, although the Trump administration appears to be "pro-crypto" overall, analysts point out that what really hit the market wasn't policy expectations, but rather tariff conflicts, macroeconomic tightening, and the chain reaction of liquidations of high-leverage positions. In November, Bitcoin even fell below $81,000, marking the largest monthly decline since 2021. Currently, the price hovers around $90,000. Industry insiders warn that the market may be entering a new "winter," but some institutions believe this is just a normal correction within Bitcoin's four-year cycle. More notably, BlackRock CEO Larry Fink and the CEO of a major platform have publicly stated that, in the long term, institutional funds are still flowing in continuously, and crypto assets are moving from the gray area into the main stage of traditional finance.
ETH
-0.41%
BTC
-0.64%
Have you ever felt this kind of dilemma?
Holding BTC, ETH, and watching a potential bull market approach, you just don't want to sell. But at the same time, you urgently need some liquidity for circulation. You can't just keep "holding on stubbornly."
Recently, an interesting solution has emerged in the market—by innovating the minting mechanism, allowing "HODLers" to both retain their gains and instantly access cash. A team has productized this idea, and the logic is quite clear.
**How to use it? It's actually simple.**
You pledge mainstream coins (like BTC, ETH, not stablecoins) as collateral, and the system immediately mints stablecoins for you to spend. But the key isn't here—the key is that the entire design lets you avoid fully cutting losses while still sharing in the upside when prices rise.
**Three parameters, all covered**
To use this mechanism, you need to set three things yourself:
• Lock-up period—choose from 3 months to 12 months  
• How much stablecoin to mint—this determines your capital efficiency  
• Profit multiplier during price increase—this is a price multiplier that caps your profit
After filling in these three, the system automatically calculates three critical numbers for you:  
- The amount of stablecoins you can receive  
- The liquidation price (if the price falls below this, collateral will be forcibly liquidated)  
- The exercise price (as long as the price exceeds this, your profit can be activated)
**What happens at maturity? Three possibilities.**
**First: the coin drops, even below the liquidation price**
No way around it—the collateral must be liquidated to protect the protocol. But there's a clever part—your previously obtained stablecoins are still in your hands, intact. You can exchange them directly for USDT or USDC.
In other words, you've partially hedged against the downside risk. Having already unlocked liquidity earlier, you actually come out ahead.
**Second: the coin price fluctuates between two prices**
The most comfortable scenario. You just return the minted stablecoins, and you get back all your collateral assets intact. It's like getting free liquidity for a period, at zero cost.
**Third: the coin rises and exceeds the exercise price**
Now it gets interesting. Not only can you retrieve all your collateral, but the gains beyond the exercise price are also yours. It's like getting liquidity while sharing some of the bull market profits.
**Why is this design a bit different?**
Traditional collateralized stablecoin loans are purely betting on a decline. Once prices go up, all the benefits are taken by the protocol or other participants. But this new scheme essentially gives you a "price channel"—buffer on the downside, profit sharing on the upside, with liquidity in between.
For those who want to participate in the bull market but also don't want to miss out on liquidity opportunities, this is indeed a good idea. Of course, liquidation risk always exists, and parameter settings need to be cautious. But at least it offers a new option for HODLers.
AltcoinHunter
2025-12-29 23:20
Have you ever felt this kind of dilemma? Holding BTC, ETH, and watching a potential bull market approach, you just don't want to sell. But at the same time, you urgently need some liquidity for circulation. You can't just keep "holding on stubbornly." Recently, an interesting solution has emerged in the market—by innovating the minting mechanism, allowing "HODLers" to both retain their gains and instantly access cash. A team has productized this idea, and the logic is quite clear. **How to use it? It's actually simple.** You pledge mainstream coins (like BTC, ETH, not stablecoins) as collateral, and the system immediately mints stablecoins for you to spend. But the key isn't here—the key is that the entire design lets you avoid fully cutting losses while still sharing in the upside when prices rise. **Three parameters, all covered** To use this mechanism, you need to set three things yourself: • Lock-up period—choose from 3 months to 12 months • How much stablecoin to mint—this determines your capital efficiency • Profit multiplier during price increase—this is a price multiplier that caps your profit After filling in these three, the system automatically calculates three critical numbers for you: - The amount of stablecoins you can receive - The liquidation price (if the price falls below this, collateral will be forcibly liquidated) - The exercise price (as long as the price exceeds this, your profit can be activated) **What happens at maturity? Three possibilities.** **First: the coin drops, even below the liquidation price** No way around it—the collateral must be liquidated to protect the protocol. But there's a clever part—your previously obtained stablecoins are still in your hands, intact. You can exchange them directly for USDT or USDC. In other words, you've partially hedged against the downside risk. Having already unlocked liquidity earlier, you actually come out ahead. **Second: the coin price fluctuates between two prices** The most comfortable scenario. You just return the minted stablecoins, and you get back all your collateral assets intact. It's like getting free liquidity for a period, at zero cost. **Third: the coin rises and exceeds the exercise price** Now it gets interesting. Not only can you retrieve all your collateral, but the gains beyond the exercise price are also yours. It's like getting liquidity while sharing some of the bull market profits. **Why is this design a bit different?** Traditional collateralized stablecoin loans are purely betting on a decline. Once prices go up, all the benefits are taken by the protocol or other participants. But this new scheme essentially gives you a "price channel"—buffer on the downside, profit sharing on the upside, with liquidity in between. For those who want to participate in the bull market but also don't want to miss out on liquidity opportunities, this is indeed a good idea. Of course, liquidation risk always exists, and parameter settings need to be cautious. But at least it offers a new option for HODLers.
BTC
-0.64%
ETH
-0.41%
USDC
0%
#数字资产市场动态  Will there be unexpected surprises in the New Year release? Judging by the momentum, the bullish signals still seem quite strong. Anyway, I just can't help but want to follow the $BTC trend, and $ETH and $SOL are also worth paying attention to. If this wave of market movement picks up, it will be perfect. What does everyone think?
MoonRocketman
2025-12-29 23:20
#数字资产市场动态 Will there be unexpected surprises in the New Year release? Judging by the momentum, the bullish signals still seem quite strong. Anyway, I just can't help but want to follow the $BTC trend, and $ETH and $SOL are also worth paying attention to. If this wave of market movement picks up, it will be perfect. What does everyone think?
BTC
-0.64%
ETH
-0.41%
SOL
-0.54%
Plus de publications sur BTC

FAQ sur l’achat de Bitcoin(BTC)

Les réponses de cette FAQ sont générées par une intelligence artificielle et sont fournies à titre indicatif uniquement. Veuillez évaluer soigneusement les informations présentées.
Quel est l’endroit le plus sûr pour acheter du Bitcoin (BTC) ?
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Puis-je acheter du Bitcoin (BTC) pour 100 $ ?
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Le Bitcoin (BTC) est-il 100 % sûr ?
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