Worx Nitro 40V Brushless 21" Cordless Push Lawn Mower
Push / Walk-Behind mower · Model WP772 · Residential-duty · Battery
Worx doesn’t publish a list price for this model — it’s dealer quote only. The Worx product page is the place to start.
The Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower is a residential-grade battery walk-behind mower, a quiet, low-maintenance choice for smaller yards, with a 20-inch deck and a 40 V battery. It weighs 63.7 lb (28.9 kg).
At a glance
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
Chosen by stated rules, not opinion: same class, a deck within 2 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.
Engine
| Power Source | battery |
|---|---|
| Fuel Type | Battery / Electric / Cordless |
Electrical
| Voltage | 40 V |
|---|---|
| Battery Capacity | 5 Ah |
Deck
| Cutting Width | 20 in (508 mm) |
|---|---|
| Min Cut Height | 1.5 in (38 mm) |
| Max Cut Height | 4 in (102 mm) |
| Cut Positions | 7 |
Dimensions
| Weight | 64 lbs (28.9 kg) |
|---|
General
| Bagger Capacity | 2 bu (70.5 L) |
|---|---|
| Warranty | 5 yr |
Similar models
Other push / walk-behind mowers with comparable specs — including other brands — that buyers cross-shop with the Nitro 40V Brushless 21 in Cordless Push Lawn Mower.
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — worx.com.
Other Worx NITRO models › 5 more in this range: NITRO 40V 16 in Push Lawn Mower, NITRO 40V 21 in Self-Propelled Lawn Mower, Nitro 40V Brushless 21 in Cordless Self-Propelled Dual-Blade…, Nitro 40V Brushless 21 in Cordless Self-Propelled Lawn Mower and more
See all Worx mowers and specs ›
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Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
What the specs work out to
Figures MowerFacts computes from Worx’s own numbers — not published by the manufacturer.
Gate & trailer fit
- 32 in gateFits
- 36 in gateFits
- 48 in gateFits
Needs at least 26 in of clearance (estimated).
Power & run time
- Battery energy200 Wh
Fit uses the deck width plus 6 in for the discharge chute, because Worx doesn't publish an overall width — measure before buying if a gate is tight.
Battery energy is voltage x amp-hours; run time depends on cut height, grass load and blade speed, so it isn't estimated here.
Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower questions
What size deck is on the Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower?
The Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower has a 20-inch (508 mm) cutting deck.
How much does the Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower weigh?
The Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower weighs 64 lb (28.9 kg) as specified by Worx.
How much does the Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower cost?
Worx doesn't publish a list price for the Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower — it's sold on a dealer quote. MowerFacts records prices only where the manufacturer publishes them.
What is the Worx Nitro 40V Brushless 21 in Cordless Push Lawn Mower built for?
Residential-duty push / walk-behind mower. Built for home-lawn use.
Source: Worx (manufacturer) · archived copy