College textbooks

$100 of Jan 2021 prices

158,956 sats

$110.45 in Aug 2026BTC avg $69,487

What $100 of college textbooks in January 2021 costs, moved with the CPI college textbooks index.

Change over 1 year: +63.48% sats; -1.08% USD
Change over 5 years: -27.64% sats; +10.05% USD
Change over 10 years: -99.09% sats; +9.30% USD
Since Jul 2015: -99.51% sats; +18.39% USD

Jul 2015: ₿0.3255 ($93.30) → Aug 2026: 158,956 sats ($110.45). Sats prices fall when bitcoin's purchasing power rises. In work time: 13 hours then, 15 hours now, at the federal minimum wage ($7.25/hour).

About this history

Missing months: Oct 2025.

Full history change sats n/a · USD n/a

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Sats: orange area, right scale. USD: blue line, left scale. Monthly values; sats at each month's average BTC price

Source

U.S. Bureau of Labor Statistics, series CUUR0000SSEA011. Monthly index, not seasonally adjusted.

Dollar value = $100.00 × index ÷ index in Jan 2021.

Sats use the average of BTC's daily closes (Coinbase, UTC) in each month; for the current month, the average so far.