Bitcoin calculators & utilities.
Free, instant, no signup. Built around the same data the btclyzer dashboard runs on — daily price history, on-chain feeds, multi-source aggregation.
Calculators
Live nowBitcoin DCA Calculator
Pick an amount, frequency and start date — see exactly how much BTC you'd hold today, your average buy price, profit/loss and a side-by-side with lump-sum buying on the same date. Full daily price history back to 2013.
BTC Profit / Loss Calculator
"I bought X BTC at $Y on date Z — what's it worth now?" Single-buy retrospective with USD return, BTC return, max drawdown and time-to-recovery metrics.
Halving countdown
Days, hours, minutes and blocks remaining until the next Bitcoin halving. Plus a quick historical view: where price sat at each previous halving and what happened in the 12 months after.
Visualisations
In productionHalving-cycle analyzer
Plot BTC price as days since each halving overlaid on the same axis. See how the current cycle compares to 2012, 2016 and 2020 at the same offset.
Fear & Greed history
Full multi-year Fear & Greed Index timeline with price overlay. Zoom into any cycle and read the index value at every major top and bottom.
Mempool fee heatmap
Live sat/vB fee tiers, mempool occupancy and recent-block fee-rate distribution — for picking the right fee on your next on-chain send.