Guesstimate
How Many Coffees Does a City Café Sell in a Day?
A bottom-up estimate from seats, turnover, and peak hours — and how to sanity-check it.
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GuesstimateHow Many Rides Does a Ride-Hailing App Do in NYC Daily?
Sizing daily trips from population, adoption, and trips per active user.
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GuesstimateHow Much Does a Video Platform Spend on Storage a Year?
Uploads per minute, average file size, retention, and cost per terabyte.
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GuesstimateHow Many Pizzas Are Sold in a Country Each Day?
A consumption-based estimate from population, frequency, and average order size.
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GuesstimateWhat Revenue Does an Airport Parking Lot Generate?
Spaces, occupancy, average stay, and daily rate — built up from first principles.
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GuesstimateHow Many Diapers Does a City Use Per Day?
Sizing demand from birth rate, age band, and changes per child per day.
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GuesstimateHow Many Elevators Are There in a Dense Metro?
Estimating from building stock, floors per building, and elevators per floor band.
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GuesstimateHow Much Mobile Data Does a Messaging App Process Daily?
Users, messages and media per user, and average payload size.
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GuesstimateHow Big Is the Electric-Toothbrush Market in a Country?
A replacement-cycle model from households, adoption, and price.
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GuesstimateHow Many Streaming Subscriptions Exist in a Region?
Sizing subscribers from households, broadband, and subscriptions per home.
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