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Size comparison

A3 vs Tabloid

A3 is 17.6 mm wider and 11.8 mm shorter than Tabloid. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.

17.6 mm11.8 mmTabloidA3
Tabloid (279.4 × 431.8 mm) and A3 (297 × 420 mm) at the same scale, corners aligned. The shaded band is what differs.

Compare a Different Pair

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vs
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A3 and Tabloid, Side by Side

A3TabloidDifference
Millimetres297 × 420279.4 × 431.817.6 × 11.8 mm
Inches11.69 × 16.5411 × 170.69 × 0.46 in
Centimetres29.7 × 42.027.9 × 43.2
Area0.125 m², 124,740 mm²0.121 m², 120,645 mm²1.03×
Aspect ratio1 : 1.414 (√2)1 : 1.545different

What Is Lost Printing One on the Other

At 100% scale, both centred, nothing resized. A positive figure on the wider or taller side is cropped; on the other it is a blank margin.

AxisGapA3 onto TabloidTabloid onto A3
Width8.8 mm (0.35 in) each sideA3 loses itblank band
Height5.9 mm (0.23 in) each endblank bandTabloid loses it

Scale-to-Fit Percentages

The figure to type into a printer or PDF dialog to scale one to fit inside the other:

Tabloid to fit A397%leaves a thin border on one pair of edges
A3 to fit Tabloid94%leaves a thin border on one pair of edges

Beyond the Measurements

Envelopes: A3 fits C3; Tabloid fits 12 × 18.

Frequently Asked Questions

Is A3 bigger than Tabloid?

A3 is bigger. It is 297 × 420 mm against 279.4 × 431.8 mm for Tabloid, about 1.03 times the area.

What is the difference between A3 and Tabloid?

A3 is 17.6 mm wider and 11.8 mm shorter than Tabloid. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.

Can you print Tabloid on A3?

Not at full size without a change. Shrink Tabloid to 97% to fit A3, which leaves a thin border, or print at 100% and lose 8.8 mm off each side and 5.9 mm top and bottom.

Dimensions per the standards on the A3 and Tabloid pages. Differences and scale factors computed. Reviewed . Editorial Process →