Free Online Ruler for iPad — Actual Size in cm & Inches
centimeter view inch view
Online Ruler for iPad
This is a real-size online ruler designed for iPad browsers. Unlike generic online rulers that guess your screen size, this ruler is calibrated for the iPad's actual display dimensions — giving you accurate measurements in centimeters and inches without any app.
The iPad's large screen lets you measure objects up to approximately 19 cm (7.5 inches) in a single view — more than most smartphone rulers can manage. Switch between centimeter and inch display using the buttons above.
Why Use an iPad as a Ruler?
- Longer range: measure up to 19 cm / 7.5 inches in one shot
- High accuracy: calibrated to your iPad's exact pixel density (264 PPI on standard iPad)
- No app needed: works instantly in Safari — nothing to install
- Free: no sign-up, no subscription, no cost
Common use cases: measuring craft materials, checking if items fit in envelopes or boxes, sewing and DIY projects, verifying product dimensions while shopping online.
How to Use This iPad Ruler
- Open this page in Safari on your iPad.
- Select centimeter or inch mode using the buttons above.
- Place the object along the ruler on the right side of the screen.
- Read the measurement at the object's far edge.
Note: results may vary on PC or non-iPad browsers due to screen size differences.
iPad Models Supported
This ruler is optimised for the standard iPad display. For iPad mini, use the dedicated ruler below.
Using a different device? Select your model from the list below.
You can use a virtual on-screen online ruler to measure the actual size of a small object in inches or centimeters if you don’t have a real ruler at hand. One such tool is Real size ruler for smartphones.
Actual ruler for iphone17 and 17pro
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Actual ruler for iphone12 and 12pro
Actual ruler for iphoneX and XS
Actual ruler for iphone6 and 6S
Actual ruler for iphone 6Plus and 6SPlus
Actual ruler for iphone5 and 5S
Actual ruler for Android (Pixel10Pro)
Actual ruler for Android (Pixel10)
Actual ruler for Android (Pixel9a)
Actual ruler for Android (Pixel9Pro)
Actual ruler for Android (Pixel9)
Actual ruler for Android (Pixel8a)
Actual ruler for Android (Pixel8Pro)
Actual ruler for Android (Pixel8)
Actual ruler for Android (Pixel7a)
Actual ruler for Android (Pixel7pro)
Actual ruler for Android (Pixel7)
Actual ruler for Android (Pixel6pro)
Actual ruler for Android (Pixel6a)
Actual ruler for Android (Xperia10III)
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Actual ruler for Android (GalaxyS21+5G)
Actual ruler for iphoneX and XS (inch)
Actual ruler for iphone8 (inch)
Actual ruler for iphone7 (inch)
Actual ruler for iphone6 and 6S (inch)
Actual ruler for iphone5 and 5S (inch)
Frequently Asked Questions
Is this iPad online ruler accurate?
Yes. This ruler is calibrated specifically for the iPad's screen dimensions and pixel density, providing real-size measurements without manual adjustment.
Do I need to install an app?
No app needed. Open this page in Safari on your iPad and start measuring immediately — no installation or sign-up required.
How long can I measure with this iPad ruler?
You can measure objects up to approximately 19 cm (7.5 inches) in a single view, which is longer than most smartphone-based online rulers.
Can I use centimeters and inches?
Yes. Use the "centimeter view" and "inch view" buttons at the top to switch units instantly.
Is this ruler free?
Completely free — no payment, no registration, no download required.
Ring Size Gauge
Printing Ruler
There is also a service to download printed rulers that can print and measure up to 1 meter, printed triangular rulers that can measure up to 10 cm, circular rulers that can measure from 5 mm to 60 mm in diameter, and bamboo shaku that can measure up to 4 shaku.
Go to Triangle Ruler for Printing
Go to Printable Circle Ruler Page
Go to actual size bamboo scale for printing
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