17,081,888 sats
A year of in-state tuition and fees at a public four-year college: College Board's 2020-21 average ($10,560), moved with the CPI college tuition and fees index.
Jul 2015: ₿32.8 ($9,396) → Aug 2026: ₿0.1708 ($11,870). Sats prices fall when bitcoin's purchasing power rises. In work time: 1,296 hours then, 1,637 hours now, at the federal minimum wage ($7.25/hour).
Missing months: Oct 2025.
Sats: orange area, right scale. USD: blue line, left scale. Monthly values; sats at each month's average BTC price
U.S. Bureau of Labor Statistics, series CUUR0000SEEB01. Monthly index, not seasonally adjusted.
Dollar value = $10,560 × index ÷ index in Jan 2021. Source of the starting amount. CPI indexes adjust for quality changes, so this can rise more slowly than sticker prices.
Sats use the average of BTC's daily closes (Coinbase, UTC) in each month; for the current month, the average so far.