How Much Are Graphing Calculators Worth?
Graphing calculators hold steady secondhand value due to perennial back-to-school demand, with everyday workhorses like the TI-84 Plus typically fetching $30 to $60. Exact value depends heavily on the brand, specific model generation, color screen capabilities, and whether accessories like slide covers or charging cables are included. Use FlipTip to scan your specific model and instantly check current secondhand market pricing.
What graphing calculators actually sold for
Short answer: Based on 106 real completed eBay sales in the US (checked November 2, 2026), graphing calculators typically sold for $14.99–$50 (median per model): Texas Instruments TI-84 Plus CE Color at about $50, Texas Instruments TI-84 Plus (for parts) at about $14.99.
Real completed sales on eBay in the US — what buyers paid, not what sellers are asking. Each sale is checked to be the exact item; graded copies, lots, parts and Best Offer sales (where eBay hides the real price) are left out. Updated November 2, 2026 · 106 sales checked.
"Pay at most to flip" is FlipTip's rule of thumb for resellers — the typical sale ÷ 1.6, which leaves room for eBay's fee (about 13%), shipping and a solid profit; "—" = too cheap to flip one at a time. Tap a price to work out your own number.
"Typical sale" is the median. "Most sold between" is the middle of the market — the middle 70% of sales when there are six or more, otherwise the lowest to the highest. Your item's condition, completeness and exact version move it inside — or outside — that range, so scan yours for its own number — or see how to check eBay sold prices yourself.
Full report: what graphing calculators sold for — 106 sales, by month and new vs. used →
Flipping graphing calculators?
At the stall the question isn't what it's worth — it's the most you can pay and still make money after the fees and the shipping label. The "Pay at most to flip" column above gives a starting number for each model.
Free, no account. Or scan it at the stall — FlipTip gives you the max price to pay on the spot.
What decides the value of graphing calculators
Brand and Model Demand
Texas Instruments models like the TI-84 Plus, TI-84 Plus CE, and TI-89 Titanium command the highest and most stable resale demand because they are standard requirements in middle schools, high schools, and universities. Lesser-known brands or older monochrome Casio models generally fetch lower prices.
Screen Type and Color Display
Modern graphing calculators featuring high-resolution color screens, such as the TI-84 Plus CE or Casio FX-CG50, command a significant price premium over older monochrome display models like the classic TI-83 Plus.
Included Accessories
Calculators sold with their original hard slide covers, fresh battery doors, USB connectivity cables, and fully functional rechargeable battery packs or clean battery compartments achieve higher prices than loose, bare units.
Functional and Cosmetic Condition
Units with clean, unblemished screens, responsive buttons, and no corrosion in the battery compartment sell quickly at top dollar. Heavy scratches, etched student names on the case, or dead pixel lines on the LCD will significantly decrease the resale value.
Typical price ranges
Broad secondhand-market ranges to orient you — the exact value of your item depends on the precise model, edition and condition. Scan it for the real number.
💡 How FlipTip prices it
Point your camera at the item. FlipTip identifies the exact model, edition and era, checks real listings on your country's marketplaces, and gives you a price range, a sell-speed score and a worth-it-or-skip verdict — before you buy or sell.
From our blind test on 29 real US eBay sales of electronics & games in the last 30 days: FlipTip saw only the photo. See every test, including the misses →
Graphing Calculators — FAQ
How much is my old TI-84 Plus worth?
Standard Texas Instruments TI-84 Plus graphing calculators typically sell between $30 and $50 on the secondhand market depending on cosmetic condition and whether you have the slide cover. Units that include the original cover and clean battery compartments sell toward the higher end of that range. Scan your item with FlipTip to identify the exact model variant and get the exact current price.
Are graphing calculators still in high demand?
Yes, graphing calculators remain in steady demand because middle schools, high schools, and standardized testing boards prohibit smartphones in classrooms and testing environments. Parents and students consistently turn to the secondhand market to avoid high retail replacement costs.
Does an engraved student name lower the value?
Yes, many school districts or students engraved names or ID numbers into the plastic casing. While it does not affect the mathematical functionality of the calculator, collectors and casual buyers generally prefer unblemished units, which reduces the resale value by about 10 to 20 percent.
More value guides
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