Right-to-Left Rulers | McMaster-Carr

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114 Products

About High-Quality Rulers

What separates a throwaway ruler from one you’ll keep for decades, which type is best for everyday use, and how to compare materials.

Adhesive-Back Rulers

Free up your hands when measuring length over and over—no more lining up rulers or tape measures. These rulers stick to everything from toolboxes to lathe beds for a permanent measuring guide.

Extra-Flexible Plastic

These rulers are flexible enough to conform to curved surfaces without snapping.

	Lg.	Front Graduations (Numeric Graduations)	Wd.	Thk.	Color	No. of Segments		Each
Inch







				Right-to-Left Reading Direction

				1 ft.	1/32" (1")	1/2"	0.004"	Silver	1	0000000	00000


				1 ft.	1/16" (1")	1/2"	0.004"	Clear	1	00000000	0000
				1 ft.	1/16" (1")	1/2"	0.004"	Silver	1	0000000	0000
				1 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Clear	1	00000000	0000
				1 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Silver	1	0000000	0000
				1 1/2 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Silver	1	0000000	0000
				3 ft.	1/32" (1")	1/2"	0.004"	Silver	1	0000000	0000
				3 ft.	1/16" (1")	1/2"	0.004"	Clear	1	00000000	0000
				3 ft.	1/16" (1")	1/2"	0.004"	Silver	1	0000000	0000
				3 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Clear	1	00000000	0000
				3 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Silver	1	0000000	0000


				6 ft.	1/32" (1")	1/2"	0.004"	Silver	2	0000000	00000
				6 ft.	1/16" (1")	1/2"	0.004"	Clear	2	00000000	00000
				6 ft.	1/16" (1")	1/2"	0.004"	Silver	2	0000000	00000
				6 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Clear	2	00000000	00000
				6 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Silver	2	0000000	00000
				7 1/2 ft.	1/4" (1"), 1/4" (1")	3"	0.004"	Yellow	1	00000000	00000
				9 ft.	1/32" (1")	1/2"	0.004"	Silver	3	0000000	00000
				9 ft.	1/16" (1")	1/2"	0.004"	Clear	3	00000000	00000
				9 ft.	1/16" (1")	1/2"	0.004"	Silver	3	0000000	00000
				9 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Clear	3	00000000	00000


				9 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Silver	3	0000000	00000
				12 ft.	1/32" (1")	1/2"	0.004"	Silver	4	0000000	00000
				12 ft.	1/16" (1")	1/2"	0.004"	Clear	4	00000000	00000
				12 ft.	1/16" (1")	1/2"	0.004"	Silver	4	0000000	00000
				12 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Clear	4	00000000	00000
				12 ft.	1/16" (1"), 1/16" (1")	1 1/4"	0.004"	Silver	4	0000000	00000
				15 ft.	1/4" (1"), 1/4" (1")	3"	0.004"	Yellow	2	00000000	00000
				18 ft.	1/16" (1"), 1/16" (1")	1"	0.004"	Silver	6	0000000	00000
				24 ft.	1/16" (1")	1/2"	0.004"	Silver	8	0000000	00000
				24 ft.	1/16" (1"), 1/16" (1")	1"	0.004"	Silver	8	0000000	00000


				30 ft.	1/16" (1")	1/2"	0.004"	Silver	10	0000000	00000
				36 ft.	1/16" (1"), 1/16" (1")	1"	0.004"	Silver	12	0000000	00000
				48 ft.	1/16" (1"), 1/16" (1")	1"	0.004"	Silver	16	0000000	000000
				60 ft.	1/16" (1"), 1/16" (1")	1"	0.004"	Silver	20	0000000	000000


				Metric







								Right-to-Left Reading Direction

1 m								1 mm (10 mm), 1 mm (10 mm)	1/2"	0.004"	White	1	0000000	0000


1 m	1 mm (1 cm), 1 mm (1 cm)							3/4"	0.004"	White	1	0000000	0000
1 m	1 mm (1 cm), 1 mm (1 cm)							1"	0.004"	White	1	0000000	0000
1 m	1 mm (10 cm)	1/2"						0.004"	White	1	0000000	0000
2 m	1 mm (10 mm), 1 mm (10 mm)	1/2"	0.004"					White	2	0000000	00000
2 m	1 mm (1 cm), 1 mm (1 cm)	3/4"	0.004"					White	2	0000000	00000
2 m	1 mm (1 cm), 1 mm (1 cm)	1"	0.004"					White	2	0000000	00000
2 m	1 mm (10 cm)	1/2"	0.004"					White	2	0000000	00000
3 m	1 mm (10 cm)	1/2"	0.004"					White	3	0000000	00000
4 m	1 mm (10 cm)	1/2"	0.004"					White	4	0000000	00000

Extra-Flexible Steel

Combine the flexibility of plastic with the strength of metal. These rulers are bendy enough to conform to curved surfaces and durable enough to resist scrapes and scratches.

	Wd.	Thk.	Color	No. of Segments		Each
Inch







	Left-to-Right Reading Direction/Right-to-Left Reading Direction

	25 ft.	1/16" (1"), 1/16" (1")	1/32" (1"), 1/32" (1")	3/4"	0.0075"	Yellow	1	0000000	000000




			Right-to-Left Reading Direction

			6 ft.	1/16" (1"), 1/16" (1")	1/32" (1"), 1/32" (1")	1/2"	0.0075"	White	1	0000000	00000


			12 ft.	1/16" (1"), 1/16" (1")	1/32" (1"), 1/32" (1")	1/2"	0.0075"	White	1	0000000	00000
			25 ft.	1/16" (1")	—	3/8"	0.0075"	Yellow	1	0000000	00000
			25 ft.	1/8" (1"), 1/8" (1")	—	3/8"	0.0075"	Yellow	1	0000000	00000
			50 ft.	1/16" (1")	—	3/8"	0.0075"	Yellow	1	0000000	00000
			50 ft.	1/8" (1"), 1/8" (1")	—	3/8"	0.0075"	Yellow	1	0000000	00000


			Inch/Metric







							Right-to-Left Reading Direction

							12 ft./3.6 m	1/16" (1"), 1 mm (1 cm)	1/32" (1")	1/2"	0.0075"	White	1	0000000	00000


							Metric







											Right-to-Left Reading Direction

											3 m	1 cm (1 cm), 1 mm (1 cm)	—	1/2"	0.0075"	Yellow	1	0000000	00000

Rigid Corrosion-Resistant Stainless Steel

Our most durable adhesive-back rulers. These rulers keep their shape and resist scrapes and scratches even if bumped with tools and machinery. Stick them to flat surfaces, such as bench tops.

Made of stainless steel, these rulers won't rust when splashed with water or wiped down with degreasers or cleaning solutions. Their graduations are etched and blackened with ink, so they won't rub off like printed graduations can.

	Thk.	Color	No. of Segments		Each
Inch







	Right-to-Left Reading Direction

	12"	1/16" (1"), 1/16" (1")	19/32"	3/64"	Silver	1	0000000	000000


	20"	1/16" (1"), 1/16" (1")	19/32"	3/64"	Silver	1	0000000	00000
	28"	1/16" (1"), 1/16" (1")	19/32"	3/64"	Silver	1	0000000	00000
	40"	1/16" (1"), 1/16" (1")	19/32"	3/64"	Silver	1	0000000	000000


	Metric







					Right-to-Left Reading Direction

					0.3 m	1 mm (1 cm), 1 mm (1 cm)	19/32"	3/64"	Silver	1	0000000	00000


					0.5 m	1 mm (1 cm), 1 mm (1 cm)	19/32"	3/64"	Silver	1	0000000	00000
					0.7 m	1 mm (1 cm), 1 mm (1 cm)	19/32"	3/64"	Silver	1	0000000	00000
					1 m	1 mm (1 cm), 1 mm (1 cm)	19/32"	3/64"	Silver	1	0000000	000000

Rulers

Your go-to rulers for everyday measuring. Whether metal for durability or wood for a classic feel, our rulers measure up to most tasks, from woodwork to textiles to rough machining.

Corrosion-Resistant Stainless Steel

Our most corrosion-resistant rulers. These rulers won't rust when rinsed, rained on, or wiped down with degreasers or cleaning solutions. They're hardened to prevent dents and scratches, so you can trust they'll last for years to come. Etched and filled with black ink, their graduations won't rub off like printed graduations can.

Calibration Certificate—When precision measurements are required for quality control or by regulation, use a ruler that includes a calibration certificate traceable to NIST. The certificate states that the ruler has passed a test for accuracy, so you can be confident your measurements are correct and consistent.

Length—For easy handling and storage, rulers that are 96" or longer come in multiple pieces that line up to create a complete ruler.

						Rulers		Rulers with Calibration Certificate
	Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Wd.	Thk.		Each		Each
Inch/Metric







				Right-to-Left Reading Direction

				12"/300 mm	1/32" (1"), 1/16" (1")	1 mm (10 mm), 1 mm (10 mm)	1"	1/32"	———	0	00000000	000000


				24"/600 mm	1/32" (1"), 1/16" (1")	1 mm (10 mm), 1 mm (10 mm)	1"	1/32"	———	0	000000000	000000
				36"/900 mm	1/32" (1"), 1/16" (1")	1 mm (10 mm), 1 mm (10 mm)	1"	1/32"	———	0	000000000	000000
				48"/1,200 mm	1/32" (1"), 1 mm (1 cm)	—	1 1/8"	1/32"	00000000	000000	———	0
				96"/2,400 mm	1/32" (1"), 1 mm (1 cm)	—	1 1/8"	1/32"	000000000	000000	———	0
				144"/3,600 mm	1/32" (1"), 1 mm (1 cm)	—	1 1/8"	1/32"	000000000	000000	———	0
				192"/4,800 mm	1/32" (1"), 1 mm (1 cm)	—	1 1/8"	1/32"	000000000	000000	———	0

Lightweight Aluminum

Our economical option. These rulers are about as lightweight as plastic rulers, so they're convenient to carry from site to site. Although light, they're not flimsy—they resist snapping if knocked around in your toolbox. Plus, they'll keep their bright finish if frequently rinsed.

Length—For easy handling and storage, 4 meter rulers come in two pieces that line up to create a complete ruler.

					Rulers
	Lg., m	Front Graduations (Numeric Graduations)	Wd.	Thk.		Each
Metric







				Right-to-Left Reading Direction

				4	1 mm (1 cm), 1 cm (1 cm)	1 3/8"	3/32"	0000000	000000

Center-Finding Rulers

Quickly locate the center of workpieces without any math. Just align these rulers so that the same measurement appears on both sides of the object—zero marks your center.

Corrosion-Resistant Stainless Steel

Image of Product. Front orientation. Rulers. Center-Finding Rulers.

These rulers won't rust when rinsed, rained on, or wiped down with degreasers or cleaning solutions. They're hardened to prevent dents and scratches, so you can trust they'll last for years to come. Etched and filled with black ink, their graduations won't rub off like printed graduations can.

						Rulers
	Lg.	Front Graduations (Numeric Graduations)	Back Graduations (Numeric Graduations)	Wd.	Thk.		Each
Inch







				Left-to-Right Reading Direction/Right-to-Left Reading Direction

				12"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	0000000	000000


				18"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	0000000	00000
				24"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	0000000	00000
				36"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	0000000	00000
				48"	1/16" (1"), 1/32" (1")	—	1 1/4"	1/32"	0000000	00000


				Inch/Metric







								Left-to-Right Reading Direction/Right-to-Left Reading Direction

								18"/45 cm	1/16" (1"), 1/16" (1")	1 mm (1 cm), 1 mm (1 cm)	1 1/4"	1/32"	0000000	00000


								24"/60 cm	1/16" (1"), 1/16" (1")	1 mm (1 cm), 1 mm (1 cm)	1 1/4"	1/32"	0000000	00000
								36"/90 cm	1/16" (1"), 1/16" (1")	1 mm (1 cm), 1 mm (1 cm)	1 1/4"	1/32"	0000000	00000

Easy-Read Rulers

From bright outdoor jobsites to dimly lit workshops, take measurements where standard metal rulers would be hard to see. The black finish on these rulers reduces glare, while the light-colored graduations pop against the dark background.

Lightweight Aluminum

Image of Product. Front orientation. Rulers. Easy-Read Rulers.

Our economical option. These rulers are about as lightweight as plastic rulers, so they’re convenient to carry from site to site. To keep them looking like new, an anodized coating guards them from daily wear and protects their finish if rinsed or rained on. Etched into the material, their graduations won't rub off like printed graduations can.

	Thk.	Wd.	Graduation Color		Each
Inch







	Right-to-Left Reading Direction

	12"	1/16" (1")	—	3/32"	1"	Silver	00000000	000000


	12"	—	1/16" (1")	3/32"	1"	Silver	00000000	0000
	24"	1/16" (1")	—	3/32"	1"	Silver	00000000	00000
	24"	—	1/16" (1")	3/32"	1"	Silver	00000000	00000
	36"	1/16" (1")	—	3/32"	1"	Silver	00000000	00000
	36"	—	1/16" (1")	3/32"	1"	Silver	00000000	00000
	48"	1/16" (1")	—	3/32"	1"	Silver	00000000	00000
	48"	—	1/16" (1")	3/32"	1"	Silver	00000000	00000
	60"	1/16" (1")	—	3/32"	1"	Silver	00000000	00000
	60"	—	1/16" (1")	3/32"	1"	Silver	00000000	00000
	72"	1/16" (1")	—	3/32"	1"	Silver	00000000	00000


	72"	—	1/16" (1")	3/32"	1"	Silver	00000000	00000
	96"	1/16" (1")	—	3/32"	1"	Silver	00000000	00000
	96"	—	1/16" (1")	3/32"	1"	Silver	00000000	00000
	144"	1/16" (1")	—	3/32"	1"	Silver	00000000	000000
	144"	—	1/16" (1")	3/32"	1"	Silver	00000000	000000


	Metric







					Right-to-Left Reading Direction

					50 cm	1 mm (1 cm)	—	3/32"	1"	Silver	00000000	00000


					100 cm	1 mm (1 cm)	—	3/32"	1"	Silver	00000000	00000
					150 cm	1 mm (1 cm)	—	3/32"	1"	Silver	00000000	00000
					200 cm	1 mm (1 cm)	—	3/32"	1"	Silver	00000000	00000

See-Through Rulers


Center Finding Style A	Center Finding Style B

Center Finding Style C

Line up these rulers exactly where you need them—they're clear plastic, so you'll never lose sight of what you're measuring. A staple of most sewers' kits, they're especially useful when working with intricate designs, lines, and patterns. All are laminated to protect their graduations from scratching and fading.

Center Finding—These rulers come with a center-finding scale, so you can quickly locate the center of workpieces without any math. Just align the scale so that the same measurement appears on both sides of the object—zero marks your center.

Red Graduation Marks—Easier to read than black graduation marks when measuring over black lines and text.

Stainless Steel Edge—Best for cutting and inking straight lines, these rulers have a stainless steel edge that guards the plastic from nicks and stains.

	Lg.	Front Graduations (Numeric Graduations)	Wd.	Thk.	Graduation Color	Material	Edge Material		Each
Inch with Center-Finding Scale



	A	12"	1/16" (1"), 1/16" (1"), 1/16", 1/16", 1/8" (1")	2"	1/32"	Red	Plastic	—	00000000	00000


	A	18"	1/16" (1"), 1/16" (1"), 1/16", 1/16", 1/8" (1")	2"	1/32"	Red	Plastic	—	00000000	0000
	B	12"	1/16" (1"), 1/16" (1"), 1/16", 1/16" (1")	1 1/2"	1/8"	Black	Plastic	Stainless Steel	00000000	00000
	B	18"	1/16" (1"), 1/16" (1"), 1/16", 1/16" (1")	1 1/2"	1/8"	Black	Plastic	Stainless Steel	00000000	00000


	Inch/Metric with Center-Finding Scale



			C	12"/30 cm	1/16" (1"), 1 mm (1 cm), 1/8" (1")	1"	1/32"	Red	Plastic	—	00000000	0000

Tape Rulers

Like masking tape, these rulers stick to workbenches, saw tables, and other surfaces for hands-free measuring. Unwind them from their roll and rip or cut them to the length you need. When you're done measuring, peel them off and throw them away—they won't mark up your surface or leave behind a sticky residue.

The measurements on these rulers repeat every 3 ft. or 1 meter. For longer measurements, each repeated section includes an empty box, so you can write in your own number for reference.

Extra-Flexible Paper

Image of Product. Front orientation. ZoomedIn view. Rulers. Tape Rulers.

To ensure these rulers last, the paper is coated to resist absorbing water and fading in the sun.

	Wd.	Thk.	Color		Each
Inch







	Left-to-Right Reading Direction/Right-to-Left Reading Direction

	105 ft.	3 ft.	1/8" (1"), 1/8" (1")	3/4"	0.004"	Yellow	0000000	000000


	Metric







					Left-to-Right Reading Direction/Right-to-Left Reading Direction

					32 m	1 m	2 mm (1 cm), 2 mm (1 cm)	3/4"	0.004"	White	0000000	00000

Pocket Center-Finding Rulers

Find the center of workpieces on the go—these rulers are no bigger than a pen to tuck into your pocket. They come with a clip to keep them from falling out or getting misplaced. To find a center, align them so that the same measurement appears on both sides of the object. Zero marks your center—no math required.

Lightweight Aluminum

About as lightweight as plastic rulers, these rulers are convenient to carry from site to site. They keep their bright finish even if frequently rinsed.

					Rulers
	Lg.	Front Graduations (Numeric Graduations)	Wd.	Thk.		Each
Inch







				Left-to-Right Reading Direction/Right-to-Left Reading Direction

				6"	1/32" (1"), 1/16" (1")	3/4"	3/64"	0000000	00000


				Metric







								Left-to-Right Reading Direction/Right-to-Left Reading Direction

								16 cm	1 mm (1 cm), 1 mm (1 cm)	3/4"	3/64"	0000000	0000

Half-Measure Adhesive-Back Rulers

Take division out of the equation when building half-scale models and prototypes. The distance between the graduations on these rulers is half the printed measurement—just use your object's true dimensions to get a model half its size. Stick these rulers to your bench top for a permanent, hands-free measuring guide.

Extra-Flexible Plastic

Image of Product. Front orientation. Contains Annotated. Rulers. Half-Measure Adhesive-Back Rulers.

These rulers are flexible enough to conform to curved surfaces without snapping.

	Thk.	Color	No. of Segments		Each
Inch







	Right-to-Left Reading Direction

	1 1/2	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	00000000	00000


	3	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	1	00000000	0000
	6	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	2	00000000	00000
	7 1/2	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	2	00000000	00000
	11 1/4	1/8" (1"), 1/8" (1")	1"	0.004"	Silver	3	00000000	00000

Heavy Duty Levels

These sturdy levels last longer than typical levels, even if you use them frequently. With four solid sides that form a box shape, they stay flat on surfaces without wobbling and won’t twist or deform over time. The aluminum housing and durable plastic vial won't crack if you step on them or drop them off a ladder or tool tray.

Levels with Center-Finding Ruler—Quickly locate the center of your workpiece without any math. These levels have graduation marks that start at zero in the middle of the level. Just align them so that the increments are the same on both sides of the object you’re measuring —zero marks your center.

					No. of Vials			Housing
	Lg.	Wd.	Ht.	Sensitivity	Horizontal	Vertical	Vial Material	Material	Color	Graduations (Numeric Graduations)		Each
Levels with Center-Finding Ruler



		24"	1"	2"	0.006"/1 ft., 1 min/0.1"	1	2	Plastic	Aluminum	Yellow	1/16" (1"), 1/16" (1")	00000000	000000


		48"	1"	2"	0.006"/1 ft., 1 min/0.1"	1	2	Plastic	Aluminum	Yellow	1/16" (1"), 1/16" (1")	00000000	00000