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Exponential growth calculator
Exponential growth
Some things grow or decay in an exponential way. This means that for every time unit (e.g. a day) the metric changes with ± the same percentage.
If you can say "
it doubles every _ days
" => this means it has
exponential growth/increase
! If you can say "
it drops to half every _ days
", it has
logarithmic decay/decrease
!
Data Point 1
Data Point 2
Time in between
sec
min
hour
day
week
month
year
decade
century
Calculate !
Growth calculation
Exponential factor
1714 → 103321 = multiply by 60.28 (or + 5928.06 %) in 14 day(s)
multiply by 1.01 (or + 1.23 %) in 1
hour
multiply by 1.34 (or + 34.02 %) in 1
day
multiply by 7.76 in 1
week
multiply by 7373.07 in 1
month
goes x
2
every 2.37 day(s)
goes x
5
every 5.5 day(s)
goes x
10
every 1.12 week(s)
goes x
100
every 2.25 week(s)
Extrapolation of data points
start point
1,714
data point
after 84.00 hour
4,776
interpolation
after 7.00 day
13,308
interpolation
after 10.50 day
37,080
interpolation
after 14.00 day
103,321
data point
after 17.50 day
287,894
extrapolation
after 21.00 day
802,190
extrapolation
after 24.50 day
2,235,229
extrapolation
after 28.00 day
6,228,255
extrapolation
after 31.50 day
17,354,449
extrapolation
after 5.00 week
48,356,546
extrapolation
after 5.50 week
134,740,986
extrapolation
after 6.00 week
375,443,135
extrapolation
Examples
Carbon-14 has a radioactive half-life of 5730 years
Social Media: Facebook grew from 1 mio MAU in 2004 to 2.32 bil in 2018
Moore's Law: number of transistors on a chip doubles every 2 years (1990-2010)
Growth of people infected by COVID-19 in the USA between 15 and 29 March 2020
Business: month on month double digit growth = x 3.14 per year