Calculatrices crypto et trackers de marché en direct
Une suite croissante de calculatrices et de trackers en direct, gratuits et sans inscription, qui transforment les concepts crypto en chiffres exploitables — de la projection des rendements et du dimensionnement des positions au suivi du halving du Bitcoin et du sentiment de marché. Chaque outil s'exécute dans votre navigateur, ne stocke rien et est conçu pour apprendre.
Calculatrices d’investissement et de croissance
Project how a holding could grow over time and compare scenarios before you commit capital.
Trading, risque et conversion
Size a position to a fixed risk, check the profit or loss on a trade after fees, and convert between assets.
Trackers de marché en direct
Follow protocol-driven events and market sentiment with continuously updated data.
Plus d’outils
How to get the most from these tools
Each calculator is a way to reason about a question, not a crystal ball. The numbers you get out depend entirely on the assumptions you put in, so the real value is in testing different scenarios and seeing how sensitive an outcome is to a change in price, rate or risk.
- Start with your own figures. Use realistic inputs rather than best-case numbers, and always include fees where the tool allows it.
- Test a range. Run an optimistic, a middling and a pessimistic case. A result that only works under perfect conditions is a warning sign.
- Remember what they can’t see. No calculator knows future prices, regulation or liquidity. Projections assume a steady world; real crypto markets are anything but.
- Pair tools with concepts. Each tool links to plain-English glossary entries and guides so you can understand the idea behind the math.
Which tool should I use?
Planning a long-term position
Begin with the ROI calculator to project a single investment, then use compound interest to see the effect of reinvested yield and dollar-cost averaging to model regular contributions instead of a lump sum.
Managing risk on a trade
Use the position size calculator to cap how much a single losing trade can cost you, and the profit / loss calculator to check the after-fee result of a buy and sell.
Understanding value and the market
The market-cap comparison shows why unit price alone is misleading, while the Peur et avidité index and halving countdown add market-wide context. New to the basics? Start with our guide on how to read a crypto market.
Compare every tool at a glance
Not sure where to start? This table summarises what each calculator and tracker answers, what you feed in, and what it returns. Select any tool to open it.
| Tool | Answers the question | You provide | You get back | Type |
|---|---|---|---|---|
| ROI calculator | What return could an investment produce over time? | Montant initial, regular contribution, growth rate, years | Valeur projetée, total invested, net growth, ROI % | Calculatrice |
| Compound interest | How much does reinvested yield add over time? | Principal, APY, compounding frequency, term | Future balance and total interest earned | Calculatrice |
| Dollar-cost averaging | How might steady, fixed-size buys grow? | Contribution, frequency, period, assumed return | Total contribué versus projected value | Calculatrice |
| Taille de position | How large a position fits my risk limit? | Account size, risk %, entry price, stop-loss | Capital at risk, units to buy, position value | Calculatrice |
| Profit / loss | What is my result on a trade after fees? | Buy price, sell price, quantity, fee % | Cost, proceeds, net profit or loss, return % | Calculatrice |
| Convertirer | What is this amount worth in another asset? | An amount and the two assets to convert | Convertired value at current market rates | Convertirer |
| Market cap | Why is unit price alone a misleading signal? | Cours and circulating supply, or two coins to compare | Market capitalisation and a like-for-like comparison | Calculatrice |
| Impermanent loss | What could providing liquidity cost versus holding? | The price-ratio change between the paired assets | Impermanent loss % compared with simply holding | Calculatrice |
| Halving countdown | When is the next Bitcoin halving? | Nothing — it reads the live block height | Estimated date, blocks remaining, reward schedule | Tracker en direct |
| Peur et avidité | What is the market’s current sentiment? | Nothing — it reads the live index | Today’s score, its classification and recent history | Tracker en direct |
Questions courantes
A few things people often ask before using the calculators and trackers.
Are the tools free to use?
Yes. Every calculator and tracker is free and needs no account or sign-in. The calculators run in your browser, so you can test as many scenarios as you like without limits.
How accurate are the projections?
The arithmetic is exact for the inputs you give it — but several of those inputs, such as a future growth rate or sell price, are assumptions about the future, not facts. A projection is a structured “what-if”, not a forecast.
Because crypto is famously volatile, always run an optimistic, a middling and a pessimistic case rather than trusting a single number.
What is the difference between a calculator and a live tracker?
A calculator works only from the numbers you type in, so the same inputs always give the same answer. A live tracker — like the Peur et avidité index or the halving countdown — automatically pulls current market data, so its reading changes as the market does.
Do these tools provide financial advice?
No. They are educational tools to help you reason about a question, and nothing here is financial advice or a recommendation to buy or sell. For context on reading the wider market, see our guide on how to read a crypto market.
Which tool should a complete beginner start with?
Most people find the ROI calculator the easiest entry point because it turns a single investment into a concrete number. From there, compound interest shows the effect of reinvesting, and dollar-cost averaging models regular buying instead of one lump sum.
Do you save the numbers I enter?
The calculators run entirely in your browser and don’t ask you to sign in or hand over personal details to get a result. Treat them as a private scratchpad for testing scenarios.
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