Texas Instruments
TI-83 Plus Graphing Calculator
star4.5(1,258)·Recommended 3× on r/BuyItForLife
The TI-83 Plus is an easy-to-use graphing calculator for math and science that lets students graph and compare functions, as well as perform data plotting and analysis. Its FLASH ROM memory allows students to update and add software applications (Apps). Count on TI calculators at exam time. You can use this TI graphing calculator on the PSAT, SAT and ACT college entrance exams, IB and AP tests.
Why r/BuyItForLife recommends it
3 mentions from real owners
- #1Dec 4, 2025
Something you didn’t expect to be BIFL but outlasted your expectations?
Ti-83 calculator from 1998. Still use it almost everyday. Works perfectly.
View on Redditopen_in_new - #2Aug 12, 2025
What's the oldest thing you still use daily that works like new?
TI-83 Plus from 1999.
View on Redditopen_in_new - #3Jan 4, 2025
What's the oldest item you still use daily that has withstood the test of time, and what's its story?
Mine’s only 20 years old, not 40, but I still use my TI-83 almost daily. Replaced the cover a few years ago when the original wore out. Lives loose in my backpack. Love that thing.
View on Redditopen_in_new