How to choose a leaf blower in plain terms: what CFM and MPH mean, corded against battery against gas, handheld or backpack, weight, noise rules, speed control, vacuum combos and a yard size guide.
The short answer
Choose by yard size first, then by power source, then by the numbers. A small lot with a patio and a few trees is served by a corded or a 20V to 40V handheld blower rated around 300 to 450 CFM. A quarter to half acre with mature trees wants a 56V to 80V handheld at 500 to 650 CFM, or a corded model if the outlet is close. Over half an acre, or any yard with heavy wet leaves, a backpack blower, battery or gas, at 600 CFM and up is the tool that gets it done in one afternoon. Match the blower to the job and ignore the biggest number on the box.
CFM and MPH
CFM, cubic feet per minute, is the volume of air the blower moves; MPH is how fast it leaves the nozzle. Volume moves piles; speed lifts stuck, wet leaves and clears cracks. For general yard work CFM is the number to buy on, because a large volume of air at moderate speed pushes a wide swath of leaves along the ground. High MPH with low CFM, which is what many cheap blowers advertise, blasts a narrow hole in the pile and scatters the rest. As a guide: 300 to 400 CFM for a patio and small lawn, 450 to 550 for a typical suburban lot, 600 and up for big yards and wet leaves. Note that some makers quote CFM at the housing without a nozzle, which inflates it; a figure with the nozzle fitted is the honest one, and a blower that lists both CFM and MPH at the nozzle is being straight with you.
Corded, battery or gas
A corded blower is the cheapest and lightest for its power and never runs out, but it is tied to a 100 foot cord and the outlet, which rules out the far corner of most lots. A battery blower is quiet, starts with a button and is the choice for most homeowners now; its limits are runtime, about 15 to 25 minutes at full speed on a 5 Ah pack, and the cost of the pack. A gas blower delivers the most air for the longest time and runs all day on a tank, at the cost of noise, fumes, pull starts, fuel mixing and winter storage. Buy corded for a small yard with a close outlet, battery for most suburban lots, and gas only if you clear an acre or more of leaves or already run gas equipment.
Handheld or backpack
A handheld blower is held in one hand at about 5 to 10 pounds and suits anything up to about half an acre in short sessions. A backpack puts the motor and pack or engine on a frame with shoulder straps, so 15 to 25 pounds ride on your back and the hand only steers the tube. It is the tool for an hour or more of continuous blowing, for heavy wet leaves and for big lots. Backpack battery blowers also hold larger packs, which solves the runtime problem. For a yard where a session is 20 minutes, a handheld is simpler and cheaper; past that, the backpack earns its price in your shoulders.
Weight and balance
Check the weight with the pack fitted, because makers often list the bare tool. A 40V handheld with a 4 Ah pack is about 8 pounds; a 60V or 80V handheld with a big pack can reach 11 or 12. Balance matters as much as weight: a blower whose pack sits behind the handle and whose tube is short hangs level and is easy on the wrist; one that is nose-heavy pulls down all session. A flat-bottom housing that stands on its own is a small thing that saves bending over. If the blower is too heavy you will use it less, so for anyone with wrist or shoulder trouble a lighter 40V model or a backpack is the better pick even at the cost of some CFM.
Noise and local rules
Gas blowers run around 70 to 75 dB at 50 feet and far louder at the ear; many battery blowers are 60 to 65 dB. A growing number of cities and counties restrict blower noise or hours, and some ban gas blowers outright or are phasing them out; California, parts of Colorado and Washington, and many individual towns have rules on the books. Check the local code before buying gas. Even where it is legal, a quiet battery blower keeps the neighbors friendlier, and ear protection is sensible with any blower above about 65 dB.
Variable speed, cruise control and nozzles
A variable speed trigger lets you clear a patio at low power without blasting mulch out of the beds, then open up for the lawn. A cruise control or speed lock holds a setting so your finger can rest. A turbo button gives a short burst for wet, stuck leaves. Nozzles come as a round tube for raw volume and a flat or flared tip that concentrates the air for scraping leaves off wet pavement; a blower that includes both, or has a tube that extends to suit your height, is more useful than one with a single fixed tube.
Vacuum and mulch combos
Some handheld blowers convert to a vacuum that shreds leaves into a bag at a mulch ratio of around 10 or 16 to 1. They are handy for beds, gravel and corners a blower cannot push from, and the mulch goes straight on the compost. The trade-offs are weight, a bag that fills fast, a conversion that takes a minute, and an impeller that does not like twigs or gravel. For a yard with a few beds and a lawn, the combo is worth having; for a big lawn with deep leaves, a blower and a tarp are faster.
Battery platform and a yard size guide
If you own a cordless mower or trimmer, buy the blower on the same platform and get it bare; the pack is most of the price. If you are starting fresh, pick a platform by the mower you want, since the mower sets the voltage. Then size the blower: up to about 5,000 square feet with a patio, a corded or 20V to 40V handheld at 300 to 450 CFM; a quarter acre, a 40V to 60V handheld at 450 to 550 CFM; a half acre with trees, a 56V to 80V handheld at 550 to 650 CFM with a 5 Ah or larger pack and a spare; over half an acre, a backpack at 600 CFM and up, battery with a large pack or gas if the local rules allow it.
How we research
We compare published manufacturer specifications, official manuals, warranty information and recurring owner feedback. Rankings are research-based unless original YardToolLab test evidence is explicitly shown on the page.
FAQs
CFM for most yard work, because air volume moves piles across grass. MPH matters for lifting wet leaves off pavement and clearing cracks. Look for a blower that balances both, with figures taken at the nozzle.
About 300 to 450 CFM for a patio and small lawn, 450 to 550 for a typical quarter acre lot, and 600 or more for big yards, wet leaves and backpack use.
For most suburban yards, yes; the strongest battery handhelds match mid-size gas blowers in air volume and are far quieter. Gas still wins on runtime and raw power for large properties.
Only for half an acre or more, heavy wet leaves, or sessions over about 30 minutes. For smaller yards a handheld is lighter, cheaper and simpler to store.
