Free packaging calculator

Label size & unwind calculator

Calculate exact full-wrap, front-panel or lid label dimensions for jars, bottles and candles, plus roll unwind direction #1–#8.

Suggested custom label size (width × height)8.875 × 3 in (225 × 76 mm)Vessel perimeter: 9.03 in · Roll unwind: #3. Leaves 1/4 in vertical clearance from neck/heel curves so labels apply flat without wrinkling.

Avoid tapered zones when measuring straight wall height. Your account manager confirms exact dieline radius and roll core size on your free proof.

FAQ

Questions

Why leave a 1/8 inch gap on a full-wrap jar label?

Glass and plastic jars have slight molding tolerances. Leaving a 1/8 inch gap prevents the ends of a wraparound label from overlapping unevenly or peeling at the seam.

What does roll unwind #1–#8 mean?

Automatic label applicators feed rolls in a fixed orientation. Unwind #3 (right side dispensing first, outside wound) and #4 (left side first) are the most common for horizontal bottle and jar wrap machines; hand-applied rolls work with any unwind.

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Quick reference

Common US Jar, Bottle & Candle Label Reference Sizes

ContainerTypical Vessel Ø × Wall HFull-Wrap Label (W × H)Front Label (W × H)
2 oz dropper / tincture bottle1.5 × 2.25 in4.5 × 1.75 in1.75 × 1.75 in
4 oz straight-sided jar2.375 × 2.0 in7.25 × 1.625 in2.625 × 1.625 in
8 oz straight-sided candle / mason jar2.875 × 3.25 in8.875 × 2.75 in3.125 × 2.75 in
9 oz amber / clear candle tumbler3.06 × 3.5 in9.5 × 3.0 in3.25 × 2.75 in
12 oz honey / sauce bottle2.5 × 4.0 in7.75 × 3.5 in2.75 × 3.25 in
16 oz wide-mouth jar3.25 × 4.25 in10.0 × 3.75 in3.5 × 3.5 in
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<iframe src="https://cubitpack.com/tools/label-size-calculator" width="100%" height="620" style="border:1px solid #e2e4ea;border-radius:12px;background:#fff;" loading="lazy" title="CubitPack Free Label size & unwind calculator"></iframe>
<p style="font-size:12px;color:#555;margin-top:6px;">Free tool by <a href="https://cubitpack.com/tools/label-size-calculator">CubitPack Label size & unwind calculator</a> &middot; <a href="https://cubitpack.com/boxes">Custom Boxes</a></p>
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