Circular saws are the backbone of any serious woodworking or renovation toolkit. Whether you’re ripping plywood, trimming studs, or making bevel cuts, a cordless circular saw gives you the freedom to work anywhere—without dragging around a power cord.
We’ve selected the top 3 cordless circular saws under $100 that offer power, precision, and portability. These picks are perfect for DIYers, handymen, and budget-conscious pros who want reliable cutting performance without overspending.
Top 3 Cordless Circular Saws Under $100 Compared
| Model | Voltage | Blade Size | RPM | Bevel Capacity | Battery Included | Best For |
|---|---|---|---|---|---|---|
| DEWALT DCS391B | 20V | 6½” | 5,150 | 0–50° | Tool only | Precision cuts & pro-grade DIY |
| Ryobi ONE+ P505 | 18V | 5½” | 4,700 | 0–50° | Tool only | Light-duty woodwork & DIY |
| BLACK+DECKER BDCCS20C | 20V | 5½” | 3,700 | 0–45° | 1 × 20V Li-ion | Entry-level cutting tasks |
Tool Breakdown & Reviews
🥇 DEWALT 20V MAX Circular Saw (DCS391B)
The DEWALT DCS391B is a high-performance cordless saw designed for serious users. With a 6½-inch carbide blade spinning at 5,150 RPM, it delivers smooth, accurate cuts through framing lumber, plywood, and more. The magnesium shoe adds durability and stability, while the 0–50° bevel capacity allows for angled cuts.
It’s sold as a tool-only model, ideal for users already in the DEWALT 20V MAX ecosystem. The ergonomic grip and lightweight design make it comfortable for extended use.
Top Features:
- 6½” carbide blade for deep cuts
- 5,150 RPM motor for fast performance
- Magnesium shoe for durability
- 0–50° bevel capacity
Reasons to Buy:
- Excellent cutting power and precision
- Ideal for framing and finish work
- Trusted DEWALT build quality
🥈 Ryobi ONE+ 18V Circular Saw (P505)
The Ryobi P505 is a compact and lightweight saw perfect for light-duty tasks. With a 5½-inch blade and 4,700 RPM motor, it’s great for cutting 2x4s, trim boards, and sheet goods. The 0–50° bevel adjustment adds versatility, and the overmold grip improves comfort and control.
This is a tool-only model, best for users who already own Ryobi ONE+ batteries. It’s a great entry point into cordless cutting for casual users and weekend warriors.
Top Features:
- 5½” blade for compact cutting
- 4,700 RPM motor
- Overmold grip for comfort
- 0–50° bevel adjustment
Reasons to Buy:
- Lightweight and easy to handle
- Great for small projects and repairs
- Compatible with Ryobi ONE+ system
🥉 BLACK+DECKER 20V MAX Circular Saw Kit (BDCCS20C)
The BLACK+DECKER BDCCS20C is the best value pick for beginners. It comes with a 20V battery and charger, making it a complete kit under $100. The 5½-inch blade spins at 3,700 RPM, suitable for basic cutting tasks like shelving, trim, and small boards.
It features a tool-free depth adjustment and a 0–45° bevel capacity, making it simple and intuitive to use. While it’s not built for heavy-duty work, it’s perfect for casual DIYers.
Top Features:
- Includes battery and charger
- Tool-free depth adjustment
- 5½” blade and 3,700 RPM motor
- 0–45° bevel capacity
Reasons to Buy:
- Great starter saw for beginners
- Complete kit at a low price
- Simple and user-friendly design
Buyer’s Tips: What to Look for in a Budget Circular Saw
When choosing a cordless circular saw under $100, consider:
- Blade size: 6½” blades offer deeper cuts; 5½” are more compact
- RPM rating: Higher RPM = smoother, faster cuts
- Bevel capacity: Look for 45° or more for angled cuts
- Battery system: Tool-only models are ideal if you already own compatible batteries
- Ergonomics: Lightweight tools with good grip reduce fatigue
Final Verdict
For the best cutting performance under $100, the DEWALT DCS391B is the top choice—powerful, precise, and durable. For light-duty tasks and portability, the Ryobi P505 is a great fit. And for beginners, the BLACK+DECKER BDCCS20C offers unbeatable value with a complete kit.
