Gas self-propelled mowers
PowerSmart 21 in. 170cc RWD 3-in-1 Specs: 21 in Deck, Mowing Time by Acre
Quick answer
The PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc has a 21 inch cutting deck and a 170 cc engine. At a typical 3 mph cutting speed it mows 1 acre in about 2 hr 19 min of open lawn, which suits up to about a third of an acre by standard deck sizing. It listed at $319.99 when this page was compiled.
On this page
- What are the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc specs?
- What is the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc sized for?
- What features does PowerSmart list?
- Who is the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc a good fit for?
- What are the alternatives to the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc?
- How do they compare on specs?
What are the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc specs?
| Spec | Value |
|---|---|
| Deck width | 21 in |
| Engine | 170 cc |
| Min cut height | 1.5 in |
| Max cut height | 3.9 in |
| Drive | rwd |
| Bagging | Yes |
| Mulching | Yes |
From PowerSmart's published specifications and the product listing.
What is the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc sized for?
| Lawn size | Open lawn | Hills | Trees and beds |
|---|---|---|---|
| 0.25 acres | 35 min | 43 min | 46 min |
| 0.5 acres | 1 hr 9 min | 1 hr 25 min | 1 hr 32 min |
| 1 acre | 2 hr 19 min | 2 hr 51 min | 3 hr 5 min |
| 2 acres | 4 hr 37 min | 5 hr 41 min | 6 hr 10 min |
| 3 acres | 6 hr 56 min | 8 hr 32 min | 9 hr 15 min |
Assumes 3 mph, a 15 percent pass overlap and 80, 65 and 60 percent efficiency for open, hilly and obstacle-filled lawns. That is about 0.43 acres per hour on open ground.
What features does PowerSmart list?
PowerSmart lists these features for the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc:
- Self-Propelled System: Rear-wheel drive provides strong traction on slopes and uneven terrain for confident control with less effort.
- 170cc OHV 4-Stroke Engine: Auto choke and recoil start provide reliable starts, and the powerful OHV engine cuts through thick or wet grass efficiently for less mowing time.
- Steel Deck: Durable steel construction is built for long-lasting performance.
- 3-In-1 Versatility: Choose mulching, side discharge, or rear bagging to match seasonal lawn conditions.
- 6-Position Height Adjustment: Quickly adjust cutting height from 1.5" to 3.9" with dual-lever control for clean, even cuts.
- Foldable Handle: Easy-fold design, Folds for easy storage.
Who is the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc a good fit for?
Best for First self-propelled mower for a medium yard. Rear-wheel drive, a 170cc OHV engine with auto choke and bag, mulch or side-discharge modes cover the basics, and the handle folds for storage. It sits in the Beginner tier of our gas self-propelled mowers coverage. See how it ranks against the rest in the best gas self-propelled mowers.
What are the alternatives to the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc?
BILT HARD 21 in. 3-in-1 Self-Propelled Gas Mower, 201cc
$319.99A 201cc engine rated at 9.0 ft-lb of torque with no-choke, no-primer starting and rear-wheel drive, at one of the lowest prices for a self-propelled gas mower.
Best for: Budget buyers with a hilly yard
Check price on Amazon
PowerSmart 22 in. High Wheel Self-Propelled Gas Mower, 170cc
$347.98A 22-inch all-steel deck, 10-inch rear wheels and single-speed rear-wheel drive suit bagging on inclines, with a 1.4-bushel rear bag.
Best for: Bagging clippings on sloped lawns
Check price on Amazon
YARDMAX YG2860 22 in. Select PACE Self-Propelled Gas Mower, 201cc
$359.99A 6-speed CVT lets you match drive speed to your walk, while high rear wheels, spiked tires and a deck cleanout port handle rough turf and upkeep.
Best for: Mostly flat medium lawns with rough patches
Check price on AmazonHow do they compare on specs?
| Model | Price | Deck width | Engine | Drive | Bagging | Mulching | Min cut height |
|---|---|---|---|---|---|---|---|
 PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc | $319.99 | 21 in | 170 cc | rwd | Yes | Yes | 1.5 in |
| BILT HARD 21 in. 3-in-1 Self-Propelled Gas Mower, 201cc | $319.99 | 21 in | 201 cc | rwd | Yes | Yes | 1.2 in |
| PowerSmart 22 in. High Wheel Self-Propelled Gas Mower, 170cc | $347.98 | 22 in | 170 cc | rwd | Yes | - | - |
| YARDMAX YG2860 22 in. Select PACE Self-Propelled Gas Mower, 201cc | $359.99 | 22 in | 201 cc | fwd | Yes | Yes | - |
Frequently asked questions
How many acres can the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc mow?
With a 21 inch deck the PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc is sized for up to about a third of an acre of lawn. It covers roughly 0.43 acres per hour on open ground at 3 mph.
Where do these PowerSmart 21 in. 3-in-1 Self-Propelled Gas Mower, 170cc specs come from?
The figures on this page come from PowerSmart's published specifications and the product listing's own feature list. Sizing tables are our estimates from standard formulas, not measurements of a unit, and real results vary with conditions. Confirm details against the operator manual before you buy or use it.
Researched, not professional advice. This page is compiled from published specifications, manuals, labels and owner-review consensus, not hands-on testing. Follow the manufacturer's instructions and product label, and consult a qualified professional where safety, chemicals, fuel or structures are involved. As an Amazon Associate we earn from qualifying purchases.