The Rule of 114 estimates how many years money takes to triple at a given annual return rate. Divide 114 by the return rate. 8% return = 14.25 years to triple. 12% = 9.5 years. Companion to the Rule of 72 (doubling time). Useful for longer-term planning — at 30+ year horizons, money often triples or quadruples. The Rule of 144 estimates quadrupling time. These rules are mental shortcuts derived from logarithm approximations, accurate within a year for normal return rates. Long-term wealth building math: at 8% returns, $10K becomes $20K in 9 years, $30K in 14 years, $40K in 18 years, $80K in 27 years.
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Rule of 114
August 22, 2026 · Aditya Gupta
Investing
Related terms
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A 401(k) is an employer-sponsored retirement plan where employees contribute pre-tax salary that grows tax-deferred until withdrawal. The…
Active Management
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