The electric vs gas lawn mower comparison calculates the 5-year total cost of each type including purchase price, fuel/electricity, maintenance, and battery replacement. Enter your specifics to find the break-even point.
Quick Comparison
| Factor | Electric | Gas |
|---|---|---|
| Purchase price | $200-800 (battery) | $250-600 (push/self-prop) |
| Annual fuel/energy cost | $5-15/season | $40-80/season |
| Annual maintenance | ~$10 (blade) | $30-130/year |
| Battery replacement (yr 3-5) | $80-300 | None |
| Startup | Push button | Pull cord |
| Emissions | Zero direct emissions | High (no catalytic converter) |
| Noise level | Quieter (~65 dB) | Louder (~85-95 dB) |
| Large lawn suitability | Up to ~1/2 acre | Any size |
5-Year Cost Calculator
Electric Mower
Gas Mower
Electric Mower — 5 Years
Gas Mower — 5 Years
How to Compare Electric vs Gas Lawn Mower Costs
The upfront price difference between electric and gas mowers has narrowed significantly. A mid-range battery mower now costs $300-600 — similar to a quality gas mower. The ongoing cost difference is where electric typically wins.
Annual operating cost advantage of electric
Charging a battery mower costs about $0.02-0.05 per mow (400 Wh battery × $0.15/kWh = $0.06). Over a 20-mow season, that's $1-2 in electricity vs $40-80 in gas. Over 5 years, the electric mower saves $200-400 in fuel costs alone.
Gas maintenance adds up
Gas mowers require annual oil changes, air filter and spark plug replacement, and occasional carburetor cleaning. Professional tune-ups run $50-80. Over 5 years, maintenance can add $150-650 to the gas mower's true cost. Electric mowers need essentially no engine maintenance — just blade sharpening once or twice a season.
Battery longevity
Factor in battery replacement when comparing. Most lithium batteries degrade after 3-5 years of use. A $150-200 battery replacement around year 4 partially offsets the operating savings. Higher-end mowers with larger batteries or dual batteries may have better longevity.
FAQ
Is this lawn mower comparison calculator free?
Yes, completely free with no signup required.
What is the annual maintenance cost for a gas lawn mower?
Annual gas mower maintenance typically includes: oil change ($10-15), air filter ($5-10), spark plug ($3-8), blade sharpening ($10-20), and seasonal tune-up if professionally done ($50-80). Total: roughly $30-130/year in DIY vs $70-150/year with professional service. Gas also requires fresh fuel and possibly fuel stabilizer.
How long do electric mower batteries last?
Lithium-ion batteries in electric mowers typically last 3-5 years or 300-500 charge cycles before noticeable capacity degradation. Replacement batteries cost $80-200 for smaller mowers and $150-350 for full-sized models. Some brands charge $200-400 for brand-specific batteries. Factor this into your 5-year comparison.
Can an electric mower handle large lawns?
Modern battery electric mowers can handle up to 1/2 acre per charge on many models. For lawns over 1/3 acre, check the specific mower's claimed runtime. Some models use dual batteries or offer fast charging. For lawns over 1/2 acre, consider a corded electric or self-propelled gas mower for reliability.
What is the environmental difference between electric and gas mowers?
A gas lawn mower produces more pollution per hour than a new car due to no catalytic converter or emissions controls. The EPA estimates one hour of gas mowing equals driving a car 300 miles in smog-forming emissions. Electric mowers produce zero direct emissions; their grid emissions depend on your electricity source.