2,200+ results for rule calculator
- Construction Slide Rule Calculator Estimator 6 Piece Set-Great For ContractorsOpens in a new window or tabBrand New$69.00Free shippingFree returns57 soldSponsoredSave up to 15% when you buy moreTop Rated Plusrobco-sales (4,408) 98.6%
- Concrete Slide Rule Calculator and Sand, Gravel & Stone Calculator one of eachOpens in a new window or tabBrand New$26.95Free shippingFree returnsSponsoredSave up to 10% when you buy moreTop Rated Plusrobco-sales (4,408) 98.6%
- Otis King Cylindrical Slide Rule Calculator Model “K” (c.1950’s)Opens in a new window or tabPre-Owned$75.00+$12.50 shippingFree returnsSponsoredTop Rated Pluszelinskyi999 (1,413) 99.3%
- Concrete Slide Rule 100 Yard Volume Calculator Great Gift for Contractors!!Opens in a new window or tabBrand New$14.95Free shippingFree returns436 soldSponsoredTop Rated Plusrobco-sales (4,408) 98.6%
- New ListingTI SR-50A Texas Instruments Vintage Slide Rule Calculator w/box case manual adapOpens in a new window or tabParts Only$26.50Free shippingSponsoredthebeststuff7 (1,291) 98.9%
- OHMITE OHM'S LAW CALCULATOR Slide Rule Parallel Resistance TOOL USA VINTAGE 1961Opens in a new window or tabPre-Owned$12.99Free 2-3 day shippingSponsoredeaglesfan724 (2,851) 100%
- Pickett 104C full size circular slide rule Profit Calculator Percent Wheel VTGOpens in a new window or tabPre-Owned$29.99+$9.84 shippingSponsoredgizmogadget66 (1,690) 99%
- B & G SYSTEM SYZER CALCULATOR SLIDE RULE FOR DESIGNING HYDRONIC OR COOLING 2009Opens in a new window or tabPre-Owned$44.990 bids · Time left5m left (Today 02:41 PM)$58.49Buy It Now+$4.13 shippingSponsoredlisto8595 (18) 100%
- Vintage Texas Instruments Calculator SR-50 1973 Slide Rule Calculator DeskOpens in a new window or tabPre-Owned$15.00+$8.95 shippingSponsoredtacklemill (205) 100%
- New ListingAltec Lansing Power Equation Calculator Slide Chart Rule Vintage PerrygrafOpens in a new window or tabPre-Owned$24.85+$5.55 shippingSponsoredExtra 40% off with couponprize*finds (928) 100%
- Concrete Slide Ruler 300 Yard Volume Calculator Slide Rule MADE IN USA!!!!Opens in a new window or tabBrand New$14.95Free shippingFree returns505 soldSponsoredTop Rated Plusrobco-sales (4,408) 98.6%
- Vintage 1946 Wesix Wired Heat Slide Rule Calculator Perry Graf Corp, Maywood, ILOpens in a new window or tabPre-Owned$9.95+$4.95 shippingSponsoredvgocontu (3,152) 100%
- 1971 Foxboro Slide Rule Valve Sizing Calculator Model No. PUB-19 w/Case & ManualOpens in a new window or tabPre-Owned$9.990 bids · Time left5d 17h left (Sat, 07:41 AM)+$6.99 shippingSponsoredgbr0_54 (280) 100%
- Concrete Slide Ruler 200 Yard Volume Calculator Slide Rule MADE IN USA!!!!Opens in a new window or tabBrand New$14.95Free shipping85 soldSponsoredrobco-sales (4,408) 98.6%
- Concrete Slide Rule Calculator Lot of 10pcs 300 Yard (VolumeSlide Rule)Opens in a new window or tabBrand New$129.00Free shippingFree returnsSponsoredTop Rated Plusrobco-sales (4,408) 98.6%
- Nuclear Blast / Atomic Burst Slide Rule | AERE Water Contamination CalculatorOpens in a new window or tabBrand New$154.99+$18.05 shippingSponsoredbaja_ron (2,356) 100%
- SUBCOOLING SLIDE RULE CALCULATOR 1998 PROPER AIRFLOW RANGE 6 CHANGES VINTAGEOpens in a new window or tabPre-Owned$15.990 bids · Time left1h 30m left (Today 04:05 PM)$20.79Buy It Now+$4.13 shippingSponsoredlisto8595 (18) 100%
- Qualitron 1446 Vintage Slide Rule Calculator AA Batteries Tested WorkingOpens in a new window or tabPre-Owned$24.95+$2.95 shippingFree returnsSponsoredTop Rated Plusdieseldogdaddy (1,394) 100%
- Asphalt Paving Job Calculator Slide RuleOpens in a new window or tabBrand New$7.15+$4.13 shippingSponsoredbuildersbookincbookstore (487) 100%
- VTG Ohmite Capacitor Calculator Slide Rule Chart Ohms Impedance FrequencyOpens in a new window or tab$12.99Free shippingSponsoredsaul_goods (1,285) 99.2%
- New ListingIDEAL Portland Cement Denver CO Concrete Quantity Calculator Slide RuleOpens in a new window or tabPre-Owned$17.99+$5.90 shippingSponsoredjanine7852 (701) 100%
- 1970s VFD Sears Electronic Slide Rule Calculator,Case,Manual, 801.58780 refurbedOpens in a new window or tabPre-Owned$20.00Free shippingSponsoredteddyesther (4,010) 100%
- Litronix 2260 Handheld Electronic Calculator Beige Vintage Slide Rule 3AA WorksOpens in a new window or tabPre-Owned$19.95+$2.95 shippingFree returnsSponsoredTop Rated Plusdieseldogdaddy (1,394) 100%
- Vintage Litronix 2200 Programmable Slide Rule Calculator Clean, Works, Nice 35Opens in a new window or tabPre-Owned$11.99Was: $14.9920% off+$6.65 shippingSponsoredmurkman172012 (4,211) 99.5%
- Vintage Texas Instruments SR-50A Slide Rule Calculator Case *READ DESCRIPTION*Opens in a new window or tabPre-Owned$24.99+$6.09 shippingSponsoredcrossroadsmarket (134) 98.9%
- Scientific-Atlanta Antenna Slide Rule CalculatorOpens in a new window or tabPre-Owned$24.99Free shippingSponsoredtjreynol (1,092) 100%
- Vintage - Calculator Slide Rule ~ Radio Shack ~ OHMS Law calculatorOpens in a new window or tabPre-Owned$10.99+$5.44 shippingSponsoredkimbovintagegoods (6,707) 100%
- New ListingKeuffel & Esser 1740 Thacher Cylindrical Slide RuleOpens in a new window or tabPre-Owned$600.00+$9.80 shippingSponsoredcpn1kao (296) 100%
- TEXAS INSTRUMENTS SR-10 Electronic Slide Rule Calculator untested With Bag VTGOpens in a new window or tabPre-Owned$19.99+$8.60 shippingSponsoredthriftingbear4444 (289) 99.1%
- 1976 - Texas Instruments - Electronic Slide-Rule Calculator - TI-30 - WorkingOpens in a new window or tab$149.99+$9.99 shippingSponsoredvintagcloset (1,148) 99.3%
- TI SR-10 Electronic Slide Rule Calculator W/ Box Power Cord Manual,case etc VGCOpens in a new window or tabPre-Owned$25.00+$6.12 shippingSponsoredbensthisnthat1 (268) 98.8%
- VTG 1974 Texas Instruments SR-10 Slide Rule Calculator Not Work Original PackageOpens in a new window or tab$50.00+$10.75 shippingSponsoredempiresdust (847) 92.3%
- VINTAGE 1973 TEXAS INSTRUMENTS SR-50 SLIDE RULE CALCULATOR w INSTRUCTIONS CASEOpens in a new window or tabPre-Owned$24.95Free 2-4 day shippingSponsoreddtddude (8,210) 99.5%
- Vintage Texas Instruments SR-50A Slide Rule Calculator Untested As Is PartsOpens in a new window or tabPre-Owned$16.46+$6.49 shippingFree returnsSponsoredjlake (1,853) 99.8%
- 1948 Perrygraf Westinghouse Rectifiers Battery Chargers Calculator Slide RuleOpens in a new window or tabPre-Owned$10.000 bids · Time left3d 3h left (Wed, 05:47 PM)+$6.15 shippingSponsoredtoyjunkie (7,798) 99.6%
- 1957 Carmet Allegheny Ludlum Steel Corp. Slide Rule Calculator for MachinistOpens in a new window or tabPre-Owned$7.00+$4.31 shippingSponsoreddmh102364 (4,773) 100%
- Texas Instruments SR-11 Electronic Slide Rule Calculator Original BatteriesOpens in a new window or tabPre-Owned$14.95+$8.60 shippingSponsoredpopsicoproducts (88) 98.9%
- Pickett Circular 103ES Slide Rule Markup Calculator Leather Case Vintage RetroOpens in a new window or tabPre-Owned$54.99Free shippingSponsoredlistitforyoukc (2,071) 100%
- Sand, Gravel & Crushed Stone Calculator Slide Rule Lot of 6pcs-Made In USA!!!Opens in a new window or tabBrand New$79.00Free shippingFree returnsSponsoredTop Rated Plusrobco-sales (4,408) 98.6%
- Sand, Gravel & Crushed Stone Calculator Slide Rule Lot of 10pcs-Made In USA!!!Opens in a new window or tabBrand New$129.00Free shippingFree returnsSponsoredTop Rated Plusrobco-sales (4,408) 98.6%
- Antique FRAPPANT Konusrechner German Calculator Desk Tool Metal+Wood SLIDE RULEOpens in a new window or tabPre-Owned$40.00+$6.00 shippingSponsoredmoncado (4,614) 100%
- New ListingBohn Omnitrex SR1 Slide Rule Calculator Rare Vintage Tested and Working w/ CaseOpens in a new window or tabPre-Owned$39.990 bids · Time left4d 2h left (Thu, 05:00 PM)+$8.95 shippingSponsoredsniffles033 (291) 100%
- Texas Instruments SR-10 Vintage Electronic Slide Rule CalculatorOpens in a new window or tabParts Only$14.99+$7.16 shippingSponsoredjatea-43 (91) 100%
- Heppenstall Steel Weight Slide Rule Calculator Gauges EquivalentsOpens in a new window or tabPre-Owned$12.970 bids · Time left2d 4h left (Tue, 07:15 PM)+$1.97 shippingSponsoredtemplate750 (277) 93.8%
- New ListingVTG 1978 Panametrics SLIDE RULE Moisture Content & Relative Humidity CalculatorOpens in a new window or tabPre-Owned$5.000 bids · Time left6d 23h left (Sun, 02:18 PM)+$4.31 shippingSponsoredgromitbeast (212) 100%
- Heppenstall Steel Weight Slide Rule Calculator Gauges Equivalents 2Opens in a new window or tabPre-Owned$9.970 bids · Time left2d 4h left (Tue, 07:15 PM)+$1.97 shippingSponsoredtemplate750 (277) 93.8%
- Vintage Slide Rule Graphic -6" Percentage Calculator, 1962 Graphic Calculator CoOpens in a new window or tabBrand New$8.99+$4.99 shippingSponsoredj-goodshawaii (2,206) 100%
- Texas Instruments Electronic Vintage Slide Rule Calculator TI-30 Red LED - WorksOpens in a new window or tabPre-Owned$11.95+$5.00 shippingSponsoredagoodlifelived (367) 100%
- Vintage Texas Instruments SR-50 Slide Rule Calculator For Parts *Not Working*Opens in a new window or tabParts Only$8.00+$6.09 shippingSponsoredunclewilliesmercantile (273) 100%
- 1961 Cutler Hammer Noise-Figure Slide Rule Calculator Airborne LabratoryOpens in a new window or tabPre-Owned$10.000 bids · Time left5d 21h left (Sat, 12:02 PM)+$7.00 shippingSponsoredblkcatdrums (673) 100%
- VTG 1973 Texas Instruments SR-50 Slide Rule Calculator Untested No NiCd BatteryOpens in a new window or tabParts Only$32.95+$6.25 shippingSponsoredaneye4treasure208 (1,170) 100%
- TI SR-56 Programmalbe Slide-rule CalculatorOpens in a new window or tabPre-Owned$50.00+$5.00 shippingSponsoredmwitman (180) 100%
- R22 Superheat Subcooling Slide Rule CalculatorOpens in a new window or tabBrand New$9.95Free shippingFree returns296 soldSponsoredtheheatcoolstore (28,824) 100%
- Vintage Sears Electronic Slide Rule Calculator w/ Case & Instructions 801.58770Opens in a new window or tabPre-Owned$16.00Free shippingSponsoredc-marcusn (2,099) 93.7%
- Vintage TACRO #4563 Conversion Rule Slide Rule CalculatorOpens in a new window or tabPre-Owned$12.45Was: $13.9911% offFree shippingLast one1 watchersSponsoredsshebalee1982 (6,004) 100%
- Vtg SHURE Capacitive / Inductive Reactance Slide Rule Calculator 1957Opens in a new window or tabPre-Owned$10.00+$5.85 shippingFree returnsSponsoredTop Rated Plusmark-and-roxanne (5,510) 100%
- 1965 K&M Cv Factor Rule Hand Calculator Globe Butterfly Control Valves KieleyOpens in a new window or tabPre-Owned$11.95+$4.38 shippingSponsoredgardengirl52 (619) 100%
- APF Mark 31 Vintage Slide Rule Calculator 9v Battery Tested WorkingOpens in a new window or tabPre-Owned$16.95+$2.95 shippingFree returnsSponsoredTop Rated Plusdieseldogdaddy (1,394) 100%
- Dwyer Instruments Inc Air Velocity Calculator Slide Rule Vintage 1974Opens in a new window or tabPre-Owned$9.99+$5.13 shippingSponsoredbabi_bythebeach (775) 100%
- Litronix 2260 Handheld Electronic Calculator Brown Vintage Slide Rule 3AA WorksOpens in a new window or tabPre-Owned$19.95+$2.95 shippingFree returnsSponsoredTop Rated Plusdieseldogdaddy (1,394) 100%
- STOW flexible shafTorque Calculator - Slide Chart - Slide RuleOpens in a new window or tabPre-Owned$9.99+$6.15 shippingSponsoredbaja_ron (2,356) 100%
- Vtg AAA Auto Club Gas Watcher Travel Time Guide & MPG Slide Rule CalculatorOpens in a new window or tabPre-Owned$8.99+$5.20 shippingSponsoredindiansquib (1,674) 99.7%
- Vintage - Calculator Slide Rule ~ Smart and Final ~ IRIS ~ Fancy FoodsOpens in a new window or tabPre-Owned$5.00+$5.25 shippingSponsoredkimbovintagegoods (6,707) 100%
- New ListingVintage Blundell Rules BRL Sliding Rule Mechanical Calculator Slide Rule in CaseOpens in a new window or tabPre-Owned$1.261 bid · Time left2d 21h left (Wed, 12:09 PM)+$20.37 shippingfrom United KingdomSponsoredversatileengineering (21,932) 99.6%
- Vintage 1949 Ohmite Parallel Resistance & Ohms Law Calculator Slide Rule ChartOpens in a new window or tabPre-Owned$13.94Was: $14.997% offFree shippingSponsoredsshebalee1982 (6,004) 100%
- Vintage 1971 Waldenbooks Instant US to Metric Conversions Slide Rule CalculatorOpens in a new window or tabPre-Owned$9.78Was: $10.9911% offFree shipping2 watchersSponsoredsshebalee1982 (6,004) 100%
- Vintage Stanley Fuller's calculator or slide rule in case c1938 #4264Opens in a new window or tabPre-Owned$5.352 bids · Time left6d 22h left (Sun, 01:11 PM)+$54.76 shippingfrom United KingdomSponsoredludlowengland (7,989) 100%
- Cylindrical Compact Slide Rule Analog Calculator Math 3D Printed PICK COLOROpens in a new window or tabPre-Owned$16.99Free shippingSponsoredSave up to 10% when you buy morefreedomquestshop (2,995) 99.8%
- Vintage Otis King Calculator/Slide Rule Model K No. A4190 Brass Color w/Box (8)Opens in a new window or tabPre-Owned$199.990 bids · Time left1d 18h left (Tue, 08:55 AM)+$9.50 shippingSponsoredrmcd10 (401) 100%
- Fearns Inches-Millimetres Conversion Calculator - Circular Slide RuleOpens in a new window or tabPre-Owned$49.99+$13.45 shippingSponsoredbaja_ron (2,356) 100%
- 1957 SIGMA INSTRUMENTS SLIDECHART SLIDE RULE CALCULATOROpens in a new window or tabPre-Owned$9.99+$6.65 shippingSponsoredgarysmusicmadness (19,588) 100%
- Vintage 1966 Amperex Audio Designers Slide Rule & CalculatorOpens in a new window or tabPre-Owned$30.60Was: $34.0010% off+$6.15 shippingSponsoredpegesos (4,487) 99.6%
- Vintage LITRONIX 2200 Slide Rule Calculator & Soft Carry Case Free ShippingOpens in a new window or tabPre-Owned$10.95Free shippingSponsoredritad1 (8,346) 100%
- Vintage ULTRA-Rare Faber Castell 67/54R Addiator Slide Rule Hybrid CalculatorOpens in a new window or tabPre-Owned$100.00+$30.00 shippingfrom PolandSponsoredbhp2-58 (85) 100%
- Asphalt Macadam Blacktop Tonnage Slide Rule CalculatorOpens in a new window or tabBrand New$14.95Free shippingFree returns85 soldSponsoredTop Rated Plusrobco-sales (4,408) 98.6%
- Items Per Page