A care label is built from five symbols, set out in a fixed order: a tub for washing, a triangle for bleaching, a square for drying, an iron for ironing and a circle for professional cleaning. Dots stand for heat, and more dots mean hotter. Bars underneath ask for a gentler process, and a cross means do not. Each symbol marks the harshest treatment the piece can take, so a cooler wash or a gentler cycle of the same kind stays within it.
Most labels follow one of two systems. US labels use plain words or the American symbols of ASTM D5489, which the Federal Trade Commission has allowed in place of words since 1 July 1997. Nearly every other country uses the international standard, ISO 3758, whose symbols are registered by GINETEX. The two share the five shapes but differ in a few marks, most visibly numbers against dots in the tub and the lines inside the drying square. The drawings on this page are the US symbols. Where an international label differs, the last column says how.
| Symbol | What it covers |
|---|---|
| Washing, by machine or by hand | |
| Bleaching | |
| Drying, in a dryer or in the air | |
| Ironing | |
| Professional cleaning: dry cleaning and wet cleaning |
What do the dots and numbers in the wash tub mean?
They give the hottest water the piece can take. A US label shows it in dots, from one to six; an international label prints the temperature itself, in degrees Celsius.
| Symbol | Meaning on a US label | On an international label |
|---|---|---|
| Machine wash, normal cycle, at any temperature | A machine-wash tub always carries a number | |
| Machine wash, up to 30°C (86°F) | A 30 in the tub | |
| Up to 40°C (104°F) | A 40 | |
| Up to 50°C (122°F) | A 50, on some labels | |
| Up to 60°C (140°F) | A 60 | |
| Up to 70°C (158°F) | A 70 | |
| Up to 95°C (203°F) | A 95 | |
| Permanent press cycle: a cool-down rinse, then a gentler spin | A mild process, with less agitation | |
| Delicate or gentle cycle: slow agitation, shorter time | A very mild process, as for wool | |
| Hand wash | Hand wash, no warmer than 40°C (104°F). Since 2023, a hand with a bar beneath means room-temperature water, up to about 30°C (86°F) | |
| Do not wash | The same |
Many US labels use words instead of symbols. Under the Federal Trade Commission's Care Labeling Rule, "cold" means water up to 30°C (86°F), "warm" 31–44°C (87–111°F) and "hot" 45–63°C (112–145°F). So one dot matches "cold", two dots "warm", and three and four dots fall within "hot". A label that says "machine wash" with no temperature means hot water is safe. Some US labels add a twisted cloth crossed out, which means do not wring.
What does the triangle on a care label mean?
The triangle is about bleach: an empty triangle allows any bleach, two diagonal lines inside allow only non-chlorine bleach, and a cross means no bleach.
| Symbol | Meaning on a US label | On an international label |
|---|---|---|
| Any bleach, chlorine or not, when needed | The same | |
| Only non-chlorine bleach, the oxygen kind sold as "color-safe" | The same | |
| Do not bleach | The same, drawn as an outline triangle crossed out |
On a US label, a missing bleach symbol means any bleach is safe. International labels are meant to show all five symbols, the triangle included.
What does a square with a circle mean?
A circle inside the square means the tumble dryer, and its dots set the heat.
| Symbol | Meaning on a US label | On an international label |
|---|---|---|
| Tumble dry, any heat | Always shown with dots | |
| Tumble dry, low heat | Lower heat, exhaust air up to 60°C (140°F) | |
| Tumble dry, medium heat | Normal heat, exhaust air up to 80°C (176°F) | |
| Tumble dry, high heat | Not used | |
| Tumble dry with no heat, air only | Not used | |
| Permanent press dryer cycle | Not used | |
| Delicate or gentle dryer cycle | Not used | |
| Do not tumble dry | The same |
Two dots read differently in the two systems: "medium" on a US label, "normal" on an international one, and the Federal Trade Commission has noted the same mismatch. On an international label, one dot asks for the dryer's low setting and two dots allow its normal heat.
What do the lines inside the drying square mean?
Lines inside the square mean drying without a dryer. Here the two systems differ most, and the same mark can mean different things.
| Symbol | Meaning on a US label | On an international label |
|---|---|---|
| Line dry: hang it to dry | One vertical line in the square | |
| Drip dry: hang it dripping wet, without spinning or wringing | Two vertical lines | |
| Dry flat: lay it out flat | The same | |
| In the shade, added to any of the three above | One diagonal line in the top-left corner |
So two vertical lines mean drip drying on an international label and nothing on a US one, where drip drying is three lines. International labels also use two horizontal lines, for drying flat without spinning first.
What do the dots on the iron mean?
The dots set the iron's highest setting: one dot is low, two medium and three high, up to 110°C (230°F), 150°C (300°F) and 200°C (390°F) on a US label.
| Symbol | Meaning on a US label | On an international label |
|---|---|---|
| Iron, dry or steam, at any setting | Shown with dots | |
| Low, up to 110°C (230°F) | Up to 110°C; GINETEX's key to the 2023 standard gives 120°C (248°F). Steam may damage the piece | |
| Medium, up to 150°C (300°F) | Up to 150°C; GINETEX's key to the 2023 standard gives 160°C (320°F) | |
| High, up to 200°C (390°F) | Up to 200°C; GINETEX's key to the 2023 standard gives 210°C (410°F) | |
| No steam, added beneath any iron symbol | Since 2023: a one-dot iron with the steam crossed out, low heat without steam | |
| Do not iron | The same |
A label does not say which edition it follows, so where the two figures differ, use the lower one. The Fahrenheit figures are the US chart's own, rounded; exactly, 150°C is 302°F and 200°C is 392°F. In words, a US label's "cool iron" means the lowest setting, "warm iron" the medium one, and "iron" alone the highest. A US label that leaves ironing out is saying the piece should not need it regularly.
As a rule of thumb, one dot suits acetate, acrylic, nylon and spandex; two dots suit polyester, rayon and viscose, silk and wool; three dots suit cotton and linen. GINETEX adds that the setting is read from the label alone, never from the fiber content.
What do the letters in the circle mean?
The circle is for the professional cleaner, and the letter tells them which process the piece can take.
| Symbol | Meaning on a US label | On an international label |
|---|---|---|
| Dry clean | Shown with a letter | |
| Dry clean, any solvent | Not used | |
| Dry clean, any solvent except trichloroethylene | Dry clean in perchloroethylene or the hydrocarbon solvents | |
| Dry clean, petroleum solvent only | Dry clean in hydrocarbon solvents (since 2023, also a silicone solvent) | |
| Do not dry clean | The same. It also rules out stain removers that contain solvents |
A W in the circle means professional wet cleaning, a cleaner's controlled water process, and a crossed W means the piece should not be wet-cleaned. On an international label, bars under the circle ask the cleaner for a milder process. On a US label, short marks around the circle ask for a short cycle, reduced moisture, low heat or no steam finishing.
What is the difference between "dry clean" and "dry clean only"?
"Dry clean" names one safe method and leaves washing open; "dry clean only" warns that washing will damage the piece. Under the Federal Trade Commission's rule, a care label needs to give only one safe cleaning method. "Dry clean only" may be printed only with evidence that washing would cause damage. "For best results, dry clean" means the piece can be washed, though dry cleaning may keep it looking better and lasting longer.
Why does a label show numbers instead of dots?
A label shows numbers because it was made to the international standard. In the US, the Federal Trade Commission's rule lets the American symbols stand in for written instructions; the international symbols may appear only alongside the words. So on a piece sold in the US, a label with numbers in the tub should carry the instructions in words as well, and the words are the ones to follow.
What if the label and a care guide disagree?
Follow the label. Its symbols are set by the most sensitive part of the piece, which may be the dye, a finish, the buttons, a zip or an appliqué rather than the cloth.
Related guides
The fiber guides explain why each fabric takes the care it does: How to Care for Cotton, How to Care for Linen, How to Care for Viscose and How to Care for Polyester and Blends. Sizes and fit are on Size & care.
Sources
- Federal Trade Commission, Care Labeling Rule, 16 CFR 423; Clothes Captioning: Complying with the Care Labeling Rule; "Rules for clothing care label instructions to change" (1996); and the ASTM guide to care symbols, from which the drawings on this page are made.
- Federal Trade Commission, notice of proposed rulemaking, 77 FR 58338 (2012).
- ASTM International, D5489-25, Standard Guide for Care Symbols for Care Instructions on Textile Products.
- GINETEX, Care symbols under ISO 3758:2023, and the GINETEX overview of the care symbols; ISO 3758:2023, Textiles: care labelling code using symbols.
- Consumer Affairs Agency of Japan, care symbols for labels from August 2024.
- Innovation, Science and Economic Development Canada, Guide to apparel and textile care symbols.
- University of Tennessee Extension, Care label symbols.
- American Cleaning Institute, Laundry Basics.
Written from the standards and guidance listed above. Last reviewed October 13, 2026.