Bitcoin’s (BTC) Last 929,465 Coins Will Require Over 100 Years To Mine

Bitcoin’s circulating supply has reached approximately 20.07 million coins, leaving roughly 929,465 BTC still to be issued under the protocol’s hard cap of 21 million. That remaining portion will take more than a century to enter circulation because of the network’s programmed halving schedule, which steadily reduces the block subsidy until issuance effectively ends around the year 2140.

The figure is derived directly from on-chain measurements of total mined supply at recent block heights near 962,570.

At the current subsidy of 3.125 BTC per block and an average of one block every ten minutes, new coins are created at a rate of about 450 BTC per day, or roughly 164,250 BTC per year.

This rate is fixed by code and cannot be altered by any central authority.Every 210,000 blocks—approximately every four years—the reward paid to miners is cut in half.

The original subsidy began at 50 BTC, then fell through successive halvings to 25, 12.5, 6.25, and today’s 3.125 BTC.

The next reduction is projected for 2028, when the subsidy drops to 1.5625 BTC and daily issuance falls to around 225 BTC.

Subsequent halvings continue this decline, so that by the early 2030s the daily output will be measured in tens of BTC rather than hundreds.Because issuance was front-loaded, the network reached 50 percent of its maximum supply in its first few years and 75 percent not long afterward.