10 Best Electric Lawn Mowers 21 Inch for 2026: Top Cordless Picks for Easy, Clean Cuts

Looking for an electric lawn mower 21 inch that can handle real yard work without gas, oil, or constant maintenance? This size hits a sweet spot for cutting speed, maneuverability, and storage convenience.

Below, we’ve narrowed the field to 10 strong cordless picks for homeowners who want cleaner operation and simpler mowing with the right mix of power, runtime, and features.

Best 10 Electric Lawn Mower 21 Inch Picks for 2026

Self-Propelled All-Rounder – Worx 40V 21" 3-in-1 Self-Propelled Mower

If you want an electric lawn mower 21 inch model that can handle a medium yard with less effort, this Worx 40V self-propelled mower is built for convenience. The vented AeroDeck helps reduce clumps and improve bagging, while the brushless motor and IntelliCut system are designed to adjust power as grass conditions change.

Best For: Homeowners with up to 1/2 acre who want a self-propelled mower with flexible 3-in-1 cutting options.

Pros:

• Self-propelled drive with variable speed up to 3.7 MPH
• 3-in-1 mowing: mulching, bagging, and side discharge
• AeroDeck design helps reduce clogging and improves bag collection
• Includes two 5.0Ah batteries and a 4.0A dual charger

Cons:

• Heavier than some push mowers at 63.1 pounds
• Cutting width is listed as 20 inches in the details, despite the 21-inch class

This is a strong pick if you want a cordless mower that balances runtime, bagging performance, and easier handling on moderate-sized lawns. The included battery setup and self-propelled design make it especially practical for regular weekly mowing.

Power-Focused Push Mower – Greenworks 60V 21 in Push Lawn Mower

This electric lawn mower 21 inch option is aimed at buyers who want stronger cutting performance in a push mower. Greenworks pairs a 60V system with a steel deck, dual self-sharpening blades, and a 4-in-1 setup that covers mulch, bag, side-discharge, and turbo leaf mode.

Best For: Yard owners who want gas-like cutting power in a push mower with a battery included.

Pros:

• 60V platform with claimed gas-like performance and strong torque
• Steel deck and IPX4 waterproof design for tougher conditions
• 4-in-1 versatility adds turbo leaf mode
• LED headlights and large rear wheels improve visibility and maneuvering

Cons:

• Push design means more user effort than a self-propelled mower
• Heavier feel may matter for users prioritizing easy handling

If you want a cordless mower with a more aggressive cut and a full-feature feature set, this Greenworks model stands out. It looks especially useful for people who value power, all-weather durability, and a complete battery system right out of the box.

Value Brushless Push Mower – Worx 40V 21" Brushless Push Mower

For shoppers comparing an electric lawn mower 21 inch setup with a simpler push design, this Worx WG752 focuses on practical performance and efficient runtime. It uses the same AeroDeck and IntelliCut features as the self-propelled model, along with a brushless motor and 3-in-1 cutting modes for everyday yard work.

Best For: Homeowners who want a lighter-feeling 21-inch cordless mower with 3-in-1 flexibility.

Pros:

• Brushless motor is designed for more power and longer runtime
• AeroDeck helps reduce clogs and improves bagging performance
• 3-in-1 mowing covers mulching, bagging, and side discharge
• Includes two 5.0Ah batteries and a 4.0A dual charger

Cons:

• Push operation requires more effort than a self-propelled mower
• Details list the cutting width as 20 inches, not a full 21 inches

This is a sensible pick if you want the Worx battery ecosystem and don’t need self-propelled drive. The included batteries, brushless motor, and flexible cut modes make it a straightforward option for routine mowing.

High-Power Quiet Cutter – Greenworks 80V 21 in Push Lawn Mower

This electric lawn mower 21 inch model is built for buyers who want a stronger battery platform and a quieter cut than gas. Greenworks positions the 80V mower as a maintenance-free option with a brushless motor, steel deck, LED headlight, and 4-in-1 versatility for different mowing tasks.

Best For: Mowing up to 1/2 acre with a quiet, high-voltage push mower that includes battery and charger.

Pros:

• 80V system is rated for gas-like performance and quieter operation
• Brushless motor and durable 21-inch steel deck
• 4-in-1 capability for mulch, bag, side-discharge, and turbo leaf pickup
• Folding aluminum handles help reduce storage space

Cons:

• Push mower design requires more user input than self-propelled models
• Maximum adjustable cutting height tops out at 3.75 inches

If you want a battery mower with a stronger power platform and broad lawn versatility, this Greenworks 80V model is a compelling choice. It fits best for users who want clean operation, useful extra features, and a complete battery package.

Self-Propelled Power Pick – 21in 40V Max Brushless Cordless Mower

If you want an electric lawn mower 21 inch model that can handle a bigger yard with less effort, this 40V Max self-propelled option is built for easier mowing. The dual-battery setup, brushless motor, and 3-in-1 cutting system make it a flexible choice for routine lawn care.

Best For: Homeowners with larger lawns, slopes, or uneven areas who want reduced pushing effort and flexible bagging, mulching, or rear discharge.

Pros:

• Self-propelled drive helps reduce pushing effort on larger or uneven lawns.
• Dual 20V batteries provide 48% more rated energy and support up to 1/4 acre per charge.
• Brushless motor reaches up to 4,100 RPM for efficient cutting.
• 3-in-1 mowing with mulching, bagging, and rear discharge plus 8 height settings.

Cons:

• Battery-powered runtime may not suit very large properties without a recharge.
• At 37.9 pounds, it is still a full-size mower to maneuver and store.

This model stands out if you want the convenience of self-propelled assistance plus the versatility of a 21-inch deck. It looks well suited to regular suburban mowing where cutting efficiency and easier handling matter most.

Quiet Runtime Value – Greenworks 40V 21in Push Mower

For shoppers comparing an electric lawn mower 21 inch model that balances runtime and simplicity, this Greenworks push mower is a practical pick. It pairs a brushless motor with a steel deck, 3-in-1 cutting options, and vertical storage to make everyday mowing more convenient.

Best For: Homeowners who want a straightforward push mower with decent runtime, easy height changes, and space-saving storage.

Pros:

• Up to 60 minutes of runtime with the included 5.0Ah battery.
• Durable 21-inch steel deck helps cover large areas quickly.
• Brushless motor offers more torque, quiet operation, and longer life.
• 3-in-1 mowing plus vertical storage for garage space savings.

Cons:

• Push design means all forward movement is manual.
• Item weight is 62 pounds, which may feel heavy for some users.

Overall, this mower makes sense if you value dependable runtime and a no-frills layout over extra drive assistance. It is a solid fit for routine lawn maintenance where storage space and simple operation matter.

Gas-Like Performance Choice – EGO POWER+ 21in Cordless Mower

If you want an electric lawn mower 21 inch model with stronger cutting performance, this EGO cordless mower is designed to deliver gas-like results without the hassle of fuel. It combines a high-torque brushless motor, fast charging, and included battery power for efficient mowing sessions.

Best For: Buyers who want strong cutting torque, fast recharge time, and compatibility with the EGO battery platform.

Pros:

• Up to 6.0 ft-lbs of cutting torque for performance that exceeds gas-powered mowers.
• Up to 55 minutes of runtime with the included 56V 6.0Ah battery.
• Fast charging gets the battery back to full in 80 minutes.
• LED headlights and 7 cutting height positions add convenience and flexibility.

Cons:

• At 82 pounds, it is the heaviest mower in this group.
• Only seven height positions, which is slightly less granular than some competitors.

This is a strong option if cutting power is your top priority and you want a mower that fits into an existing EGO battery ecosystem. It is especially appealing for users who value performance, battery compatibility, and quick turnaround charging.

High-Power 21-Inch 3-in-1 Option – SENIX 60V 21-Inch Cordless Push Mower

If you want an electric lawn mower 21 inch model that leans toward stronger cutting performance, this SENIX 60V push mower is built for thicker grass and medium to larger yards. The 21-inch deck, 3-in-1 cutting modes, and 7 height settings make it a flexible pick for regular lawn care without gas or cords.

Best For: Homeowners who want more cutting power, a wider deck, and simple one-button cordless mowing.

Pros:

• 60V/6.0Ah battery setup is designed for strong power and quieter operation than gas mowers.
• 21-inch cutting width helps reduce mowing time on medium to large yards.
• 3-in-1 mowing supports mulching, bagging, and side discharge.
• 7 cutting heights from 1.5″ to 4″ make it easy to dial in the cut.

Cons:

• The battery may arrive partially charged and needs a full charge before first use.
• At 54 pounds, it is not the lightest push mower in this group.

Overall, this model stands out for users who value stronger battery power and a wider cutting path over ultra-light handling. It looks especially practical if your yard has thicker growth or uneven sections that benefit from a bit more muscle.

Balanced Runtime Pick – 21-Inch Dual-Battery Cordless Lawn Mower

This electric lawn mower 21 inch model focuses on straightforward suburban yard maintenance with a dual-battery 40V setup and a lightweight push design. It is a practical choice if you want enough runtime for typical weekly mowing, along with the usual mulching, side discharge, and bagging options.

Best For: Suburban homeowners who want a simple, low-maintenance cordless mower with solid runtime.

Pros:

• Two 4.0Ah batteries provide up to 40 minutes of runtime and cover lawns up to 1/4 acre.
• Brushless motor is described as lasting longer than standard motors and avoids gas maintenance.
• 8-position height adjustment from 1.2″ to 4″ fits different grass types and seasonal needs.
• Close-edge cutting design helps trim neatly near fences, walls, and borders.

Cons:

• The product notes do not list a specific cutting speed or motor RPM.
• Runtime may be limiting for larger properties beyond the stated lawn size.

For buyers who want a dependable everyday mower without extra complexity, this one covers the basics well. Its combination of dual batteries, edge trimming, and 3-in-1 grass handling makes it a sensible all-around yard tool.

Fast-Charging Feature Pick – 21-Inch 40V Mower with 2×8.0Ah Batteries

If you want an electric lawn mower 21 inch option with a bigger battery package and quick recharge support, this 40V push mower is built for efficient small-to-medium yard care. It combines a 21-inch deck, brushless motor, and 3-in-1 cutting modes with fast charging and a battery setup aimed at reducing downtime.

Best For: Buyers who want fast charging, dual 8.0Ah batteries, and flexible 3-in-1 mowing.

Pros:

• Two 8.0Ah batteries and a 100W fast charger are designed for up to 45 minutes of runtime.
• 21-inch cutting deck helps cover small to medium gardens efficiently.
• 3200 RPM brushless motor is built for durability, lower noise, and longer operating time.
• 8-position height adjustment and 3-in-1 mowing add useful flexibility.

Cons:

• The mower weighs 53.6 pounds, so it is not especially light.
• Battery compatibility details are helpful, but may be more relevant to DeWalt 20V users than to everyone.

This is the most feature-packed option for users who care about runtime, charging speed, and easy cut customization. It is a strong fit if you want a cordless mower that feels geared toward faster turnaround between sessions.

How We Picked the Best Electric Lawn Mower 21 Inch

We focused on practical factors that matter most to homeowners: cutting width, battery platform, runtime, drive type, height adjustment, and overall versatility. A good Electric Lawn Mower 21 Inch should be easy to handle, capable of covering medium-size yards efficiently, and suited to the way you mow—whether that means mulching, bagging, or side discharge.

We also prioritized models from established brands alongside value-oriented options that offer useful features such as brushless motors, self-propelled assistance, and multi-battery bundles.

Quick Comparison

For most buyers, the right choice comes down to yard size and terrain. Push mowers are usually best for flat, smaller lawns or homeowners who want a lighter machine. Self-propelled models make more sense on slopes, thicker grass, or larger properties where reducing effort matters more.

Battery voltage and amp-hours also affect results. Higher-voltage systems and larger batteries generally provide more cutting strength and longer runtime, while smaller packs may be enough for modest yards if you prioritize lighter weight and lower cost.

Key Buying Factors for Electric Lawn Mower 21 Inch

Battery Power and Runtime

Look closely at voltage and battery capacity. A 21-inch mower with a larger battery is better suited to longer mow sessions and tougher grass. If your lawn is medium to large, battery bundles or dual-battery setups can reduce interruptions.

Drive Style and Terrain

Push mowers are simpler and often more affordable, but self-propelled models are worth it if you deal with hills, uneven ground, or dense turf. The added traction can make mowing noticeably easier.

Cutting Options

Most buyers benefit from 3-in-1 capability: mulching, bagging, and side discharge. Mulching helps recycle clippings, bagging keeps lawns tidy, and side discharge can be useful when grass is tall or growing quickly.

Height Adjustment and Deck Control

Multiple cutting heights help you adapt to seasonal growth and different grass types. If your lawn changes throughout the year, more adjustment steps are a practical advantage.

Who Should Buy Which Electric Lawn Mower 21 Inch?

If you want low-maintenance mowing for a small to medium lawn, a lighter push model is usually the best fit. If your yard is larger or has slopes, a self-propelled option will save time and effort. Buyers who want the strongest balance of runtime and performance should lean toward higher-voltage systems with larger batteries, while value shoppers can often find solid performance in 40V models with included battery and charger bundles.

In short, the best Electric Lawn Mower 21 Inch for you depends on your terrain, how often you mow, and how much runtime you need to finish without recharging.