SUPPLY CAP 21 Million. Fixed Forever BLOCK TIME ~10 Minutes LAUNCHED January 3, 2009 CURRENT BLOCK 936,000+ UPTIME 17+ Years. No Downtime HALVING CYCLE Every 210,000 Blocks NETWORK Decentralized · Open Source SUPPLY CAP 21 Million. Fixed Forever BLOCK TIME ~10 Minutes LAUNCHED January 3, 2009 CURRENT BLOCK 936,000+ UPTIME 17+ Years. No Downtime HALVING CYCLE Every 210,000 Blocks NETWORK Decentralized · Open Source
▪ Free Bitcoin Tools

Run Your Own Numbers.

Everyone has an opinion about Bitcoin. These tools skip the opinions — enter your salary, your savings, or your timeline and see what the math actually says. No sign-up. No paywall.

New to Bitcoin? Start with the Interactive Intro →

Bitcoin Investment Simulator

Your Bitcoin. Your Personal Projection.

Pick who you are, enter what you can set aside, choose a real-world what-if scenario — and see what the math says. Honest projections, no spin.

What brings you to Bitcoin?
Pick the one that fits. This shapes what we show you.
I'm curious I keep hearing about it I'm worried My savings are losing value I'm considering I might buy some I'm comparing Is this better than index funds? I'm skeptical Convince me it's not a scam Someone sent me this My partner won't stop talking about it
▪ No sign-up required Build Your Projection →
$60K salary · 5% · biweekly · 5 years Example Result
Total Saved
$15,000
130 deposits
Bitcoin Value
$38,400
+156% return
Savings Acct
$15,780
2% APY
You set aside $115 every 2 weeks. That's $15,000 total. Bitcoin turned it into $38,400. A savings account would have given you $15,780. 82% of your purchases are in profit today.
▪ Run your own numbers free Try the Calculator →
Paycheck Calculator

Pay Yourself in Bitcoin. Your Salary, Stacked

Everyone earns a paycheck. What if a small slice of yours went to Bitcoin? Enter your salary, pick a percentage, and see what it would have built — and what it could build next.

DCA Calculator

Bitcoin DCA Calculator. Consistency Beats Timing

Pick an amount, pick a frequency, and see what staying consistent would have returned — through every crash, every rally, every headline. No gimmicks. Just math.

$100 / week · Jan 2020 → Today Backtest Preview
Invested
$32,200
322 purchases
BTC Value
$78,249
+143% return
Gold
$76,283
+137% return
S&P 500
$39,910
+24% return
BTC +143% Gold +137% S&P +24%
You kept buying through the 2022 bear market and the 2026 correction (−41%). Bitcoin and gold both beat the S&P by a wide margin. 74% of your purchases are in profit at today's price.
▪ Run your own numbers free Try the Calculator →
$10,000 · 0.1% APY · 5 years Real Cost Preview
Your Balance
$10,050
after interest
Purchasing Power
$8,559
after inflation
The Hidden Fee
-$1,441
lost to inflation
What your bank shows you What you can actually buy
Your bank paid you $50 in interest. Inflation took $1,491. The net cost: $1,441 in lost purchasing power you'll never see on a statement.
▪ Run your own numbers free Try the Tool →
Inflation Calculator

The Hidden Fee. See What Inflation Is Costing You

Your savings account is charging you a fee. It just doesn't put it on the statement. Enter your balance and see the real cost of holding dollars.

Your Bitcoin Number

Your Bitcoin Number. How Much Is Enough?

Everyone asks "should I buy Bitcoin?" The better question is "how much do I actually need?" Enter your monthly expenses and see the three Bitcoin milestones that matter: Foundation, Resilience, and Sovereignty.

Monthly Expenses: $3,000
Foundation (3 mo) $9,000
Resilience (12 mo) $36,000
Sovereignty (60 mo) $180,000
▪ Find your number in 30 seconds Find Your Number →
0.15 BTC · $200/mo · $3K expenses Progress Preview
Foundation (3 mo) 100%
Resilience (12 mo) 67%
Sovereignty (60 mo) 13%
You hold 0.15 BTC and stack $200/month. You've hit your Foundation milestone. At this pace, you'll reach Resilience in ~14 months.
▪ Track your progress free Track Your Stack →
Stack Progress Tracker

Stack Tracker. Am I On Track?

You know your Bitcoin Number. Now track your progress toward it. Enter your holdings and stacking rate, and see how close you are to Foundation, Resilience, and Sovereignty — with a timeline for when you'll get there.

Sats Per Dollar

How Many Sats Does $1 Buy Right Now?

The single most important number for stackers. See how many satoshis your dollars buy today versus a month ago, a year ago, and a decade ago. Live data, updated every 60 seconds. The most shareable Bitcoin metric there is.

$1 USD buys you
1,142 sats
Updated live every 60 seconds
1 Year Ago
1,603
5 Years Ago
11,364
10 Years Ago
434,783
▪ Live data · Screenshot-ready Check Live Sats →
5-Year Scoreboard
Bitcoin +1,042% WINNER
S&P 500 +89%
Gold +72%
Savings +24.6%
US Dollar -15.8%
▪ Live data · 4 timeframes See the Scoreboard →
Bitcoin vs Everything

The Daily Scoreboard. Bitcoin vs the World.

Bitcoin vs S&P 500 vs Gold vs Savings vs the US Dollar. Pick a timeframe — 1, 3, 5, or 10 years — and see who wins. Live data, auto-generated share cards. The comparison chart that settles the debate.

Halving Countdown

The Next Halving. Counting Down Live.

Every 210,000 blocks, Bitcoin's block reward is cut in half. Track the live countdown to the next halving at block 1,050,000 — with blocks remaining, estimated date, progress bar, and the full halving history.

LIVE COUNTDOWN
~700
Days
:
12
Hours
:
34
Min
3.125 BTC → 1.5625 BTC
~30% to next halving
▪ Live block data · Auto-updating See the Countdown →
TODAY'S READING
0 100
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Loading...
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Yesterday
--
Last Week
▪ Updated daily · 30-day chart Check the Index →
Fear & Greed Index

Market Sentiment. One Number.

Are investors fearful or greedy right now? The Fear & Greed Index combines volatility, momentum, social media, and search trends into a single daily score from 0 to 100. Extreme fear has historically signaled buying opportunities.

Bitcoin Retirement Calculator

How Much Bitcoin to Retire?

Enter your retirement goals — desired income, timeline, and projected BTC price — and see exactly how much Bitcoin you need. Compare bear, base, and bull scenarios with a live accumulation chart.

Bitcoin Needed to Retire
₿1.88
187,500,000 sats
Projected: ₿1.22 Target: ₿1.88
Almost There
▪ Side-by-side dashboard · 3 scenarios Plan Your Retirement →
Bitcoin Unit Converter

BTC. Sats. Dollars.

Convert between Bitcoin, satoshis, and US dollars instantly. Live prices update every 60 seconds. The fastest way to think in Bitcoin.

₿ BTC
1.00000000
sat Satoshis
100,000,000
$ USD
87,432.00
▪ Live prices · Instant conversion Convert Now →