

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.
📐 Measure Like a Pro, Own the Precision!
The Perfect Pi Diameter Circumference Tape Measure (Model DCT120) is a professional-grade, pocket-sized tool designed for precise measurement of cylindrical objects. Featuring a 12ft (3.5m) flexible alloy steel blade with dual imperial and metric scales, it uniquely converts circumference to diameter with ±0.20% accuracy. Its durable ABS case includes a magnetic base and a reflective wheel brake for secure, hands-free, and easy-to-read measurements—ideal for professionals and DIYers seeking reliable, fast, and accurate results.














| ASIN | B06XD5W4RY |
| Best Sellers Rank | #12,708 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #52 in Tape Measures |
| Blade Length | 3.5 Meters |
| Blade Material | Alloy Steel |
| Blade Width | 0.5 Inches |
| Brand Name | PERFECT MEASURING TAPE |
| Case Material Type | Acrylonitrile Butadiene Styrene (ABS Plastic) |
| Color | Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,005) |
| Item Dimensions L x W | 144"L x 0.5"W |
| Item Weight | 91 Grams |
| Lock Type | Wheel Break |
| Manufacturer | Perfect Measuring Tape Co (Tapegate) |
| Measurement Accuracy | ±0.06 meters (±0.20%) |
| Model | DCT120 |
| Part Number | DCT120 |
| UPC | 850074067023 |
H**R
Perfect Tool for Precision – A Must-Have for Any Toolbox!
This Perfect Pi Diameter Circumference Tape Measure is an absolute game-changer for anyone needing precise diameter and circumference measurements! Whether you're working with pipes, trees, or any cylindrical objects, this tool makes it quick, easy, and incredibly accurate. The tape is designed specifically for measuring diameter and circumference effortlessly, eliminating the need for manual calculations. The markings are clear, easy to read, and extremely accurate. it works great everytime, I am a wood worker myself and this thing will solve some real life challenges. One thing to keep in mind: the diameter side follows a unique scale to compensate for the mathematical formula that converts circumference to diameter. Don’t mistake the standard with imperial scale—it’s designed this way for precision, where the smaller scale is imperial and the larger scale is meteric. The tape itself is flexible yet sturdy, ensuring it holds up well over time. Perfect for professionals and DIYers alike! Outstanding Customer Support! – The company stands 100% behind their product. I had a quick question, and their customer service was unbelievably responsive, friendly, and helpful. It’s rare to find such great support these days! This is a family owned business and they stand by their 100% Satisfaction Guarantee If you're looking for a top-quality measuring tool with fantastic customer service, look no further! This is the best circumference/diameter tape measure out there. Highly recommended!
M**N
Great quality from an American small business!
I rarely write reviews, but I just received this silver measuring tape from the Perfect Measuring Tape company and feel compelled to share my thoughts. I expect that this measuring tape will serve me well for years to come. It's seems durable, with convenient features, and easy to read. The size (and lack of big clip built in) means that it will slip easily into my pocket for all job outings. The silver finish was such a nice surprise in a world of florescent yellow, red and green measuring tapes. It seems like it will be easy to master the spinning dial that controls how mast the tape retracts. It doesn't stay locked when extended (it begins retracting in slow motion, regardless of adjusting the center screw -- but, that's ok because the tape isn't as sharp on the edges as others that I have used so it's easy to grasp the tape with the same hand holding the device to carefully inspect a measurement. One side of the tape is magnetic, which I think some people will appreciate but I find a bit distracting when it unintentionally picks things up. No big deal though. Finally, I was absolutely delighted to discover that this was produced by a small family-owned American business that values quality and customer satisfaction. The cost of the item is less on the company's website, but Im grateful to Amazon for the super quick delivery so am happy to pay the additional cost. I'd strongly recommend this product and company!
H**H
Quality, function and value are all included.
I would give this product a 4-1/2 stars if this was possible in the rating system. I like it very much, but not enough to say that I love it. I was looking for a quality tape measure that provided both inch & metric measurements and was not too large. This product also provides a diameter conversion measurement (when you measure the circumference/perimeter of a round object), which is a definitely a valuable capability. The quality, materials & finish are quite good and are somewhat better than I expected at this price point; this product should last a long time under moderate use. The 1/2" wide (12 foot/3.65 meter) steel tape is very strong/robust. The measurement/marking lines and numbers are very clear/easy to distinguish (high contrast). The tape measure size/storage footprint is just right for my needs; not nearly as bulky as some alternatives but large enough to get a good handle on. The spring loaded, tape retraction action is smooth & fast. The only reason for not rating this a five star product; it has a rectangular ring end on the tape versus a 90 degree bent metal end catch. This requires two hands for the type of measurements that I make most of the time. However, this is a fundamental trade off; it will work better under some measuring conditions. They should probably provide an optional 90 degree bent metal end catch version or clip on. Also, it does not have a lock on the tape; you have to effectively "lock it" with your fingers. This is not a large disadvantage, but I would pay more for this function because it can free up a hand under certain measurement scenarios. This product is highly recommended. It should be noted that I was motivated to post a review of this product because I would receive a free "silicone snap ruler" from the vendor. However, I stand by my review as an authentic reflection of my assessment of the product.
M**A
Es una cinta flexible y con material duradero, veo complicado (salvo por desgaste natural) el que se borren las mediciones.
M**4
Good for DD n DE
V**L
This tool worked when I needed it most. To show a customer that the buried pipe was not the size stated on the engineering prints. But that’s another story!
A**R
Great product
L**G
Thanks
Trustpilot
5 days ago
2 months ago