Home › Slide Rules
Slide Rule Market Statistics
Current market data for 13,778 slide rules listed on eBay.
What you'll usually pay
$30 typical price
Most are between$9–$126
Brand new$27.26
Used$29.99
On sale now13,778
💡 Used ones cost about 10% more here.
👉 In short easy summary
The best value is found in Pocket Slide Rules, which trade 19% below the median. Circular Slide Rules command a premium, priced 15% above the market median.
💚 Best value for your money
Pocket Slide Rule 363 on sale$24.32 · 19% cheaper
K&E Slide Rule 1,236 on sale$25 · 17% cheaper
Price by featured refinements
Why? Price variance is driven by form factor, ranging from 24.32 for pocket models to 34.61 for circular rules.
🛒 Some on sale right now
Common questions
What is the median price for a slide rule on eBay?
The market median price is 30.
Are used slide rules more expensive than new ones?
Used models have a median of 29.99, while new models have a median of 27.26.
Which specific type of slide rule is the most affordable?
Pocket Slide Rules are the most affordable with a median price of 24.32.
How we got these numbers
Worked out from 200 live eBay listings (price range $9–$126, odd outliers ignored). These are asking prices, so use them as a guide. Last checked June 21, 2026.