Getting tattooed
Tattoo sizing guide
Artists and clients throw around terms like palm size and half sleeve as if everyone agrees what they mean. Here's what they actually translate to, and the real question that matters more than size alone: how much detail can this design hold.
Palm size, defined
A palm-size tattoo is roughly 7 to 10 centimetres, about the size of an adult palm. It's one of the most commonly used size references in the industry, because most people have a decent intuitive sense of their own palm even if they've never measured it, which makes it a more useful shorthand than centimetres alone.
The common size references, actually defined
Artists and studios use a handful of size terms constantly, and they're rarely explained. Here's roughly what each one means in practice:
- Coin size: around 2 to 3cm. Only suited to very simple, bold designs, single lines or basic shapes. Fine detail at this size almost never holds up.
- Palm size: around 7 to 10cm. The most common reference point for a straightforward, single-element tattoo, a small animal, a word, a simple symbol.
- Credit card size: roughly 8.5 x 5.5cm, similar territory to palm size but useful when the design is more rectangular than round.
- Hand size: around 15 to 18cm, enough room for moderate detail or a slightly more complex composition.
- Half sleeve: from the shoulder to the elbow, or the elbow to the wrist, depending on which half is meant. Worth clarifying which one with your artist.
- Full sleeve: the entire arm, shoulder to wrist, usually built as one connected composition rather than separate pieces.
None of these are exact measurements, they're shorthand, and different artists use them slightly differently. If size genuinely matters to you, ask for the design printed at actual size and held against your skin before you commit, most studios do this as standard during a consultation.
Size isn't really the question, detail is
The size on its own tells you almost nothing about whether a design will actually work. What matters is how much detail is packed into that space, because skin isn't paper. Ink spreads slightly under the surface as a tattoo settles and again gradually over the years, and fine detail is the first thing to suffer when that happens.
A bold, simple shape at 3cm can look sharp for decades. A highly detailed portrait or intricate linework crammed into the same 3cm is a different story entirely, the fine gaps between lines close up as ink spreads, and what was crisp detail on day one can read as a dark smudge within a few years.
The actual rule of thumb
The more detail a design has, the more room it needs. If an artist tells you your reference image needs to be bigger than you were picturing, that's usually not upselling, it's them protecting the design from looking bad in five years.
Fine line and micro tattoos specifically
This size-versus-detail trade-off is exactly why fine line and micro tattoos need to be thought through carefully. The appeal is the delicate, minimal look, but that same delicacy is what makes them the most sensitive style to sizing mistakes. Our fine line style guide goes into why this style ages the way it does, and what to expect from it long-term.
Placement changes the equation too
The same design can work at a smaller size on a flat, stable area like the upper arm or thigh than it would on somewhere that moves, stretches or sees more friction, like fingers, ribs or joints. A design that's borderline too detailed for its size in a stable spot is more likely to blur early in a high-movement one. If you're weighing up size against a specific placement, factor that in, not just the raw dimensions.
What photographs well isn't always what heals well
A common trap: finding a design on Pinterest or Instagram that looks incredible as a small, crisp photo, and assuming it'll translate directly onto skin at that size. A fresh photo of a tattoo, sometimes taken minutes after it was finished, isn't a reliable preview of how it'll look in five years. Ask your artist directly whether the design will hold up at the size you're picturing, and trust them if they say it needs to be bigger.
Tattoo Standard is published by Penguin Tattoo Co, an Australian tattoo aftercare brand. This guide is general information. Your artist's judgement on your specific design and skin is worth more than any general sizing rule.
