Treadmill advice online has a trust problem, and it is a specific one: a large number of “best treadmill” sites have never touched the machines they rank, and order them by affiliate commission rather than by merit. There are published lists of the worst offenders. Rather than add to that pile with claims we cannot back, this page states exactly what our treadmill tools do, where every number comes from, and what we do not do.
What we do not do
Starting here, because it is the part most sites leave out.
We do not physically test treadmills. We do not own a lab, we do not run machines for 90 days, and we do not put radar guns on belts. Sites that do this properly exist and they are worth reading for that purpose. When you see us describe how a treadmill performs, it comes from published manufacturer specifications, and we say so.
We do not rank machines by commission. Our tools return results by the criteria you chose, sorted by the option you picked. Nothing is promoted for paying more, and the sort order is yours, not ours.
We do not invent ratings. If we have no rating data for a machine, no stars appear. We would rather show nothing than a number we cannot source.
Where the calculator numbers come from
Every calorie, pace and incline figure on this site comes from the ACSM metabolic equations, published by the American College of Sports Medicine in Guidelines for Exercise Testing and Prescription. They are the standard used in exercise physiology, they are public, and they are printed in full on the pages that use them so you can check our arithmetic.
We state their limits rather than hiding them. The walking equation was validated between 2.0 and 3.5 mph, the running equation above 5.0 mph, and both to a 15% grade. Between 3.5 and 5.0 mph neither was measured. Our calculators tell you when your inputs have left that tested range instead of quietly returning a confident number.
Two consequences we would rather be upfront about. These are population equations, so they describe an average person of your weight rather than you specifically, and no calculator can do better without measuring your actual gas exchange. And they assume you are supporting your own body weight, so if you hold the handrails, every calorie figure you see anywhere is an overestimate.
Where the price data comes from
Prices and product listings come from Amazon’s own product API, so they are the live figures rather than numbers we typed in and forgot to update.
We also keep our own record. Once a day we log what each tracked treadmill actually costs and store it. That history is what lets our treadmill deals page say something a retailer cannot: whether today’s price is genuinely low for that machine, measured against what it has really been selling for, rather than against a crossed-out figure the seller chose.
We hold that claim back until we have earned it. A product needs at least a week of daily observations before we will describe anything as its lowest recorded price, because with two or three days that statement is true by coincidence rather than by evidence. Until then the page shows the retailer’s own discount and says plainly that we do not yet have enough record to judge.
Where treadmill specifications come from
Motor power, deck dimensions, weight capacity, incline range and warranty terms come from the manufacturer’s published specification sheets and manuals, not from retailer listings, which are frequently wrong or copied between models.
Where a manufacturer does not publish a figure, we leave it blank rather than estimating it. A missing spec on this site means nobody published it, not that we could not be bothered to look.
How we make money, and what it does not affect
Links to Amazon on this site are affiliate links. If you buy through one, we earn a commission at no extra cost to you.
What that commission does not do: it does not decide which treadmills appear in our tools, it does not decide their order, and it does not change any number on this site. Our tools query the same product API for everyone and sort by the criteria you select. Given the state of this category, that distinction is worth stating explicitly rather than leaving to a footer disclosure.
Corrections and currency
Prices change constantly and specifications change between model revisions. Every page carries the date it was last updated, and price data carries the date it was captured. If you find a figure that is wrong, tell us and we will fix it and note the correction. That is a lower bar than most sites in this category set for themselves, and it is the one we are willing to be held to.
