How do I measure a zipper?

Follow our simple instructions to measure your zipper size.

How do I measure a zipper?

Follow our simple instructions to measure your zipper size.

Where to find number on zipper
Most zippers have a number embossed on the back

Find my zipper size number

Chances are that you have come to this page because you have a broken zipper that needs replacing. Before you order your FixnZip®, you should determine your zipper size.

FixnZip comes in three sizes, small, medium and large. These sizes will cover almost any zip.

First step, turn your old zipper over (if you still have it) and there should be a size number between 1-10 embossed on the back of the slider. Now use our chart to determine what size Fixnzip you’ll need.

#1-4 = Small
Examples: pants, skirts, fine garments, cushions, clutch handbags

#5-7 = Medium
Examples: jackets, sleeping bags, tents, purses, duffel bags, golf bags

#8-10 = Large
Examples: wetsuits, boat covers, canvas tents, heavy duty clothing, jeep windows

Where to find number on zipper
Most zippers have a number embossed on the back

Find my zipper size number

Chances are that you have come to this page because you have a broken zipper that needs replacing. Before you order your FixnZip®, you should determine your zipper size.

FixnZip comes in three sizes, small, medium and large. These sizes will cover almost any zip.

First step, turn your old zipper over (if you still have it) and there should be a size number between 1-10 embossed on the back of the slider. Now use our chart to determine what size Fixnzip you’ll need.

#1-4 = Small
Examples: pants, skirts, fine garments, cushions, clutch handbags

#5-7 = Medium
Examples: jackets, sleeping bags, tents, purses, duffel bags, golf bags

#8-10 = Large
Examples: wetsuits, boat covers, canvas tents, heavy duty clothing, jeep windows

Measure the zipper

If your zipper doesn’t have a number on the back, you can simply measure the width of the zipper teeth (coil) in millimetres. The measurement is from the outside edges of the zipper (see diagram). Once you’ve determined your zipper width, you can select which FixnZip will work best using the following guide:

Zipper teeth/coil width

1 to 4.5 mm  = Small
5 to 7.5 mm  = Medium
8 to 10 mm   = Large

How to measure a zipper
Measure between the outside edges

Measure the zipper

If your zipper doesn’t have a number on the back, you can simply measure the width of the zipper teeth (coil) in millimetres. The measurement is from the outside edges of the zipper (see diagram). Once you’ve determined your zipper width, you can select which FixnZip will work best using the following guide:

Zipper teeth/coil width

1 to 4.5 mm  = Small
5 to 7.5 mm  = Medium
8 to 10 mm   = Large

How to measure a zipper
Measure between the outside edges

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Find us at your local retailer

Worked perfectly over an old broken zipper! Now...It works like new again. Never thought fixing something could feel so rewarding. It was super easy & has now saved money.
Angela O'Neill
We just replaced 5 zips on our couch with the small size fixnzip slider and it's given our couches a new lease on life and saved us thousands. Love this product, would recommend.
Julie Nussey
We are avid campers and our tent zipper broke on our last adventure. We were able to use fixnzip to quickly repair it. Great product and easy to use.
Sarah Booth

Find us at your local retailer

Worked perfectly over an old broken zipper! Now...It works like new again. Never thought fixing something could feel so rewarding. It was super easy & has now saved money.
Angela O'Neill
We just replaced 5 zips on our couch with the small size fixnzip slider and it's given our couches a new lease on life and saved us thousands. Love this product, would recommend.
Julie Nussey
We are avid campers and our tent zipper broke on our last adventure. We were able to use fixnzip to quickly repair it. Great product and easy to use.
Sarah Booth