Site map
Every BtcCal page—including detailed guides and policy pages that are absent from the top navigation—is grouped below by topic and shown with its full page title.
Start here
Bitcoin halving calendar
Check the next-halving countdown and the current cycle position.
Go to home →Bitcoin halving insights and guides
Browse questions about halving dates, past prices, and data definitions.
View all guides →Halving schedule and detailed guides
What is a Bitcoin halving?
Learn the block-subsidy rule and why the date is not fixed.
Read the halving guide →The 2028 Bitcoin halving: target block and estimated timing
Review target block 1,050,000 and the next subsidy change.
View the next halving →Why the Bitcoin halving date estimate keeps changing
Understand block intervals and the two estimated-time methods.
Read the calculation guide →Bitcoin halving history
Compare past and future halvings, subsidies, and issuance in tables.
View the full timeline →Price history and detailed guides
Bitcoin price and halving history
View the long-term BTC/USD price chart with halving reference lines.
View price history →Did Bitcoin always rise after a halving?
Compare completed seasons' observations and their interpretation limits.
View the historical comparison →Why do BTC closes differ from intraday highs and lows?
Learn why the site keeps two different price-data bases separate.
Read the price-data guide →Bitcoin Halving Time Machine
Experience historical BTC price movements in chronological order.
Open the game →Methods and site information
Cycle-analysis methodology
Review cycle coordinates and confirmed, provisional, and forecast states.
Read the methodology →Data sources and limitations
Review data sources, validation scope, and outage handling.
Read about the data →About BtcCal
Learn BtcCal's purpose, operating principles, and correction process.
About BtcCal →Privacy and cookie notice
Review browser storage and external-service connections.
Read the privacy notice →Content updated