A white measuring tape with black text and graphics, including the words "The Fitter" and images of bra cups, resting on a white marble surface with a pink bra and makeup brushes nearby.
A white measuring tape with black text and graphics, including the words "The Fitter" and images of bra cups, resting on a white marble surface with a pink bra and makeup brushes nearby.
Logo featuring a black bra with a bra ring and a striped bottom, next to the text "The Fitter".
Logo featuring a black bra with a bra ring and a striped bottom, next to the text "The Fitter".

At Home Bra Fitting Tool

Know Your Bra Size In Seconds

Wear it. Feel it. Find Your Size.

A bra size chart from The Fitter, listing different band and cup sizes for various support and comfort levels.

Bra Size Calculator Charts Printed Directly on the Tape

Amazon logo with the words 'available at amazon' in dark blue text on a white background.

The Fitter is a wearable bra sizing tool that lets you test the comfort and support of each measurement right on the body.

Adjust the measurement until it feels just right.

A white adjustable calendar clock with black numbers and a small black Mickey Mouse icon at the bottom.
A white adjustable calendar clock with black numbers and a small black Mickey Mouse icon at the bottom.
A black and white icon of a calculator with a slash through it, indicating no calculators allowed.

Private, at-home fit- No guesswork no fitting rooms. Just your true size at home.

Get style recommendations- Top pick bra styles matched to your breast shape

No math required - Converts your measurements for you

Black outline of a house with a triangular roof, a chimney, and an open door.
Black checkmark inside a circle on a white background.

Fits Bra Sizes

28AA - 44G

Tired of Guessing Your Bra size?

Find Your Size In 3 Simple Steps

Step 1

Find Your Band Measurement

A woman measuring her breast with a ruler marked in inches, wearing a light pink bra, against a white background.

Feel the comfort of the band measurement

Close-up of a woman's upper body wearing a light pink bra with a measuring tape wrapped around her chest.

Step 2

Find Your Bust Measurement

Feel the tension of the bust measurement

A bra fitting size chart showing bust measurements, band sizes, and cup sizes with red circles around specific size combinations.
A bra fitting size chart showing bust measurements, band sizes, and cup sizes with red circles around specific size combinations.

Step 3

Find Your Bra Size

Support Size - Snugger band more support

Comfort Size - Relaxed band comfortable feel

The Fitter automatically calculates your sister size

Includes 10 breast shapes with matching bra style recommendations

Close-up of a circular white paper with black text and small black illustrations of makeup brushes and combs.
Close-up of a circular white paper with black text and small black illustrations of makeup brushes and combs.

The Fitter Reviews

A woman with long brown hair and a nose piercing, smiling and holding a copy of The Fitter Journal in front of a closet with hanging clothes.
Sponsored

“I genuinely wish someone had shown me sooner…Now I buy my bras intentionally, and I know exactly what I need for my body.”

-Sierra

Five gold stars on a black background, with a 2-star rating highlighted.
A woman with dark brown hair in a low bun wearing a white tank top measures her chest with a flexible measuring tape marked in inches, standing in front of a green paneled wall.
A woman with dark brown hair in a low bun wearing a white tank top measures her chest with a flexible measuring tape marked in inches, standing in front of a green paneled wall.

“One of my favorite things about this product is that it has the measuring charts and directions directly on the measuring tape.”

-Jojo

Five gold stars with a rating of 4.5 out of 5 displayed underneath.
A woman with long dark hair smiling and holding a small sign that says 'The Fitto' in a room with beige walls, a ceiling fan, and a colorful abstract painting on the wall.
A woman with long dark hair smiling and holding a small sign that says 'The Fitto' in a room with beige walls, a ceiling fan, and a colorful abstract painting on the wall.

“ I have been wearing the wrong bra size for years. I got to the point where I had to start using sports bras. Until I found The Fitter which helped me find my perfect bra size.”

-Loanny

Five gold stars with a metallic appearance on a black background, arranged in a horizontal line.
Smiling woman in a pink tank top holding a belt with a bra graphic and the text 'The Fitter'.
Smiling woman in a pink tank top holding a belt with a bra graphic and the text 'The Fitter'.

“It almost feels like a secret weapon, because this has been life changing for sizing. It just makes such a big difference…to make sure you’re getting the right size bra.”

-Joela

Five gold stars with dark shadows on a black background.

Let’s Talk Fit

Signs you’re wearing the wrong bra size

Line drawing of a woman's bust wearing a bra, with a curved arrow indicating a rotating motion around the shoulder area.

The Double Bubble

Spillage out of the top of the cup

A line drawing of a woman wearing a bikini, with an arrow pointing to her waist.

The Side Boob

Spillage out of the side of the cup

Line drawing of a person wearing a bikini, showing their shoulders, chest, and arms, with a downward arrow pointing to the swimwear's bottom part.

The Great Escape

Spillage out of the bottom of the cup

Outline drawing of a woman wearing a bra, with an arrow pointing at her right shoulder.

The Shoulder Diggers

Bra straps dig into shoulders

Line drawing of a person wearing a bra and holding a round object with an arrow pointing upward

The Rider

Bra band rides up the back

Black outline sketch of a woman holding a round object, possibly a fruit or vegetable, with arrows pointing at her head and the object.

The Gap Attack

Bra cups gap

A simple black and white line drawing of a woman wearing a bra, with an arrow pointing to her chest area.

The Push Away

Center gore does not lay flat

Line drawing of a person performing abdominal breathing, with arrows indicating outward and upward motion of the abdomen.

The Suffocator

Bra band digs in

Patented Technology

Close-up of the United States Patent and Trademark Office seal in gold and yellow colors, featuring an eagle with wings spread.

Ready to find your true size?

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