How we rank products
Every ranking on this site is calculated, not hand-picked. Here is the whole method.
1. Specs come from official manufacturer tables
We enter only figures published on an official Brother, Singer, Baby Lock, Juki, Husqvarna Viking or Pfaff specification table, and we link the page we used under every product. If a figure isn't published we show "Not listed" instead of guessing. When a maker publishes speed as "up to" a number, we record that official maximum and note the wording; it is not a measured stitch rate. Imprecise official wording such as a sewing space of 6"+ is shown as written and is not scored as a precise inch figure. When we multiply official embroidery width by official height, we label the square-inch result computed.
2. Each spec is scaled from 0 to 1
Each criterion has a fixed reference range, from a "weakest reasonable" value to a "best in class" value (for example 20 to 1,000 official built-in stitches, or 600 to 1,600 official stitches per minute). A product's figure is placed on that range and clamped between 0 and 1, so scores stay meaningful as products are added. Yes/no features count as 1 or 0. The ranges are listed below.
3. Weights decide what matters most
Each category lists its criteria and weights on the page. The score is the weighted average, multiplied by 10:
score = 10 × Σ(weight × scaled value) ÷ Σ(weight)
4. How missing data is scored
If a spec isn't published, the product scores at the lowest value any product in that category actually published, so an unpublished figure never outranks a published one. The page marks each such cell with an asterisk. Yes/no features that aren't stated count as no. Nothing is ever scored at the category average.
5. Prices and ratings switch on automatically
When our retailer feeds supply a current price or customer rating for at least 60% of products in a category, two more criteria join the formula: Price / value (20%) and Customer rating (15%, discounted when there are few reviews). Until then we show "Check price" and never estimate a price.
6. What the score can't tell you
Specs don't capture how a machine handles a particular fabric, how easy it is to thread, or how the stitches look on your project. An official maximum speed is the maker's published figure, not a measured rate in a given fabric. When we derive a figure from official numbers, such as multiplying official embroidery width by official height, we label it computed. Use the score to shortlist, then read the pros, cons, safety notes and sources. When we add hands-on testing notes, we label them clearly.
7. Money never changes the order
We earn affiliate commissions from some retailers. Commission rates are not an input to the formula, and no brand can pay for placement. See our affiliate disclosure.
Criteria by category
Sewing machines
- Official built-in stitches: 30% · range 15 → 800 stitches
- Official maximum sewing speed: 25% · range 600 → 1500 SPM
- Official buttonhole styles: 20% · range 1 → 16 styles
- Official sewing space: 25% · range 5 → 13.5 in
Embroidery and combo machines
- Official embroidery area (computed): 30% · range 16 → 150 sq in
- Official built-in embroidery designs: 25% · range 50 → 1000 designs
- Official maximum embroidery speed: 25% · range 400 → 1200 SPM
- Official built-in sewing stitches: 20% · range 0 → 800 stitches
Sergers and coverstitch machines
- Official maximum thread count: 30% · range 2 → 8 threads
- Official maximum sewing speed: 30% · range 800 → 1600 SPM
- Official stitch width: 20% · range 3 → 9 mm
- Official differential feed: 20% · yes/no