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The Best Four Function Calculators in 2025
If you're searching for a straightforward calculator that handles the essentials without overwhelming you with fancy graphing or programming modes, four-function calculators are the way to go. These number crunchers stick to addition, subtraction, multiplication, and division, but many throw in some extra features like percentages, square roots, or even tax and margin tools. They're perfect for kids tackling homework, office workers, or anyone who just needs a reliable calculator. Prices typically hover between $5 and $15, making them a no-brainer. We've dug into the lineups from the big three—Texas Instruments, Casio, and Sharp—to spotlight what options are available. Here's what we found:
Available 4 Function Calculators
Four Function Calculators from Texas Instruments
Texas Instruments produces durable, education-oriented basic calculators, often with solar power to minimize battery use. These are frequently used in schools, particularly for younger students.
Ti-108 Calculator: Performs the four core operations, plus square root and percentage. It features battery power, with backup solar power, an 8-digit display, and a compact design with an optional protective slide-on case (sold separately). Commonly used in elementary and middle school education, with a price around $5.
Ti-503SV Calculator: Covers basic operations, square root, and percentage. Battery-powered, with an 8-digit screen and a slim and lightweight design. Priced at approximately $5, it features auto shutoff to conserve battery.
Ti-1706SV Calculator: Includes basic operations, square root, and percentage. Dual solar and battery power, along with an 8-digit display. Available for $8, suitable for daily use.
Ti-1795SV Calculator: Adds tax calculations, along with square root and percentage. Solar and battery hybrid, with an 8-digit angled display, grand total, and sign change keys. Priced at $10, useful for small business applications and doubles as a great desktop calculator.
Four Function Calculators from Casio
Casio's basic calculators are recognized for their reliability and practical features, such as color options or foldable designs. Many incorporate solar power and memory functions.
DM-1200BM: Handles basic operations plus tax, square root, percentage, and cost/sell/margin functions. Desktop model with a 12-digit display, dual solar and battery power, and a backspace key. Priced at $19, appropriate for retail or accounting tasks.
HS-4G: Performs the four basic operations, square root, and percentage. Solar-powered, with a slim 8-digit handheld design. Available for about $5, noted for its energy efficiency.
SL-300SV: Covers basic operations, square root, and percentage. Solar with battery backup, an 8-digit display, and independent memory. Priced at $7, appreciated for its clear visibility and build quality.
HS-8V: Includes basic operations, square root, percentage, and a markup function. Solar-powered, with an 8-digit screen. Compact and under $5, suitable for sales calculations.
SL-100L: Performs basic operations, square root, and percentage. Features a foldable design, solar power, and an 8-digit display with a built-in protective cover. Priced at about $8.
SL-300VC: Handles basic operations plus time and tax calculations, square root, and percentage. Solar and battery powered, with an 8-digit display; available in blue, pink, or lime green. Priced at $7, appealing for users seeking variety in appearance.
Four Function Calculators from Sharp
EL-233SB: Performs basic operations, square root, and percentage. Battery-powered, with an 8-digit LCD and pocket-sized construction using durable keys. Priced at $5, suitable for portable use.
EL-240SAB: Includes basic operations, square root, percentage, and last-answer recall. Solar and battery powered, with an 8-digit tilted display. Available for $7, beneficial for sequential calculations.
EL-243SB: Covers basic operations, square root, and percentage. Dual solar and battery power, an 8-digit display, and a hinged hard cover for protection. Priced at $6, designed for safe transport.
EL-244WB: Performs basic operations plus tax and percentage. Solar and battery powered, with an 8-digit display in a compact desktop format. Priced at $7.
EL-310WB and EL-377WB: Both handle basic operations, tax, square root, and percentage. Solar and battery powered, with 8-digit displays; the EL-377WB is slimmer. Priced at $9-10, equipped with automatic shut-off.
EL-330WB and EL-334WB: Include basic operations, tax, square root, percentage, cost/sell/margin functions, backspace, and double-zero key. Solar and battery powered, with 10- or 12-digit angled screens. Priced at $14-16, intended for professional efficiency.
The Best 4-Function Calculator 4 You
The two largest factors to consider when choosing the best four function calculator are affordability, to stay in budget, and advancement, to get the most of your calculator.
The price of Four function, or “basic,” calculators range from $4 to $16. The most affordable four function calculators available are the Ti-108, Ti-503SV, HS4G, HS8V, and EL233SB at $4.95.
With basic and tax calculation capabilities, a square root function, a percentage function, Cost/Sell/Margin functions, a backspace key, and double-zero key, the most advanced four function calculator available are the EL330WB and EL334WB.
Whether you're a student needing a basic calculator for class or a sales specialists needing to calculate margin and tax calculations, the right four function calculator can make a big difference. By considering both functionality and budget, you can choose a calculator that best fits your needs, whether it's a basic model like the TI-503SV or a feature-rich option like the EL-330WB.
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