I'm looking to buy a circular saw and I'm confused about the power differences between a 24-volt cordless saw and a 14-amp corded saw. Why does one measurement use volts and the other amps? I've heard that generally, corded tools like a circular saw have more power because they run off a power cord. Is that true? Which one should I go for based on my needs?
4 Answers
Powerwise, corded saws typically outperform cordless ones. Corded tools run on AC power, usually around 120/240 volts, and are measured by amps. In contrast, cordless tools are rated by volts, and while they have improved a lot, they can’t quite match the consistent power of a corded saw. If you want something for heavy-duty work all day, go corded. But if it's just a few cuts and you want mobility, a cordless is super handy.
Right! And remember, you can also factor in battery life and charging time when opting for cordless.
To clarify how to compare: Watts is the real indicator of power, calculated by multiplying volts by amps. Most quality cordless tools today have brushed or brushless motors that pump out a lot of power, but they still can’t quite match the sustained power of a corded tool for extended tasks. If you’ll do lots of cuts in one go, a corded will come in handy. But if you only use it sporadically, a cordless can be less of a hassle.
That’s a good point! I think for a weekend warrior, even an 18V model is usually powerful enough for home projects.
Exactly! If one-off cuts are your thing, a basic cordless should do the trick just fine.
Honestly, it's about what you're cutting and how often. If it’s plywood or softwoods, a $50 cordless saw might be all you need. The blade quality plays a huge role too! Just remember, a workshop setup usually benefits from corded tools due to fewer battery issues. Whereas outdoors or mobile jobs make cordless way more convenient.
Good call! For occasional use, I’d recommend the cordless option to avoid the hassle of cords.
Right! And for anyone cutting heavier woods, investing in a quality saw is key, be it corded or cordless.
When it comes down to it, it’s about your needs. If you're planning a dedicated woodworking space, a corded saw might serve you better since it’s not going to lose power mid-use. But if you're working outside or in tight spots, get a cordless. They’ve become really powerful with brushless motors, so for many tasks, they hold their own against corded models these days!
Totally! I have a 20V cordless and a corded one. The corded one is a beast, but I love how portable the cordless is for quick jobs.
Agreed! And many new cordless models can tackle tougher jobs too, especially with the advanced battery technology.

Exactly! For light tasks, I’d always pick a cordless. But for tougher jobs, it’s hard to beat the power of a corded saw.