Make 24
Medium1+ players
Use the numbers 1, 3, 4 and 6 exactly once with +, −, ×, ÷ and parentheses to make exactly 24.
Show a solution
6 ÷ (1 − 3 ÷ 4) = 24. Ready for harder? Try 3, 3, 8, 8: 8 ÷ (3 − 8 ÷ 3) = 24.
Free Online Solve Calculator
SolverCalc is a free solve calculator that handles everything from simple arithmetic to trigonometry, logarithms, powers and factorials. Type an expression or tap the keys, and get an accurate answer instantly—right in your browser.
- 100% Free
- No Download
- Works on Chromebook
You can also type with your keyboard: digits, plus, minus, asterisk, slash, caret, parentheses, Enter for equals, Backspace to delete and Escape to clear.
Scientific
Expression:
History
Your last 5 calculations appear here. Tap one to reuse it.
What Is a Solver Calculator?
A solver calculator is a scientific calculator that understands full expressions, not just one operation at a time. You can type 8 + 2 × (6 − 1)² and it follows the correct order of operations automatically, the same way your math teacher would.
Our solver calculator runs entirely in your web browser. There is nothing to install, it works the same on Windows, macOS, Chromebooks, iPhone and Android, and it pairs with step-by-step articles so you can see why an answer is right, not just what it is.
Features
Why Choose SolverCalc
Everything you need from a scientific calculator, without the clutter.
Advanced Functions
Trigonometry in degrees or radians, logarithms, roots, powers, factorials, π, e and a reusable Ans key.
Lightning Fast
Answers appear as you type. The whole page is small, so it opens quickly even on slow connections.
Educational
A growing library of worked solutions explains fractions, percentages and algebra one step at a time.
Lightweight & Offline-Friendly
Once the page has loaded, every calculation happens on your device—no server round-trips needed.
Mobile Friendly
Large, touch-friendly keys and a responsive layout that fits any screen from phones to desktops.
Privacy First
No sign-up, no account and no stored calculations. Your math stays in your browser.
How to Use the Solve Calculator
Four quick steps, plus a reference for every key.
- 1
Choose DEG or RAD
Pick degrees for everyday angles or radians for calculus and physics problems.
- 2
Enter your expression
Tap the keys or type on your keyboard. Use parentheses to group terms.
- 3
Press equals
Press = or Enter. The answer appears in large text, rounded to 10 significant digits.
- 4
Reuse your answer
Tap Ans or an item in the history list to keep working with a previous result.
Calculator functions reference
| Key | What it does | Example |
|---|---|---|
| sin | Sine of an angle (DEG or RAD) | sin(30) = 0.5 in DEG |
| cos | Cosine of an angle | cos(60) = 0.5 in DEG |
| tan | Tangent of an angle | tan(45) = 1 in DEG |
| log | Logarithm base 10 | log(1000) = 3 |
| ln | Natural logarithm (base e) | ln(e) = 1 |
| √ | Square root | √(16) = 4 |
| x² | Square the previous value | 7² = 49 |
| x³ | Cube the previous value | 3³ = 27 |
| xʸ | Raise to any power | 2^10 = 1024 |
| n! | Factorial of a whole number | 5! = 120 |
| 1/x | Reciprocal (one divided by the value) | 8, then 1/x = 0.125 |
| % | Percent (divides by 100) | 25% × 80 = 20 |
| π | Pi, about 3.141592654 | 2π ≈ 6.283185307 |
| e | Euler’s number, about 2.718281828 | e² ≈ 7.389056099 |
| ( ) | Group parts of an expression | (2 + 3) × 4 = 20 |
Examples
Solve Calculator Examples
Real problems you can solve right now. Type the input exactly as shown and press = to get the same answer.
| Problem | What to type | Result | Useful for |
|---|---|---|---|
| Sine of 45° | sin(45) | 0.7071067812 | Trigonometry homework |
| Tangent of 60° | tan(60) | 1.732050808 | Heights of right triangles |
| Log base 10 of 250 | log(250) | 2.397940009 | pH and decibel problems |
| Natural log of 10 | ln(10) | 2.302585093 | Growth and decay models |
| Square root of 2 | √(2) | 1.414213562 | Diagonals and geometry |
| e cubed | e^3 | 20.08553692 | Calculus and statistics |
| 15% of 240 | 15% × 240 | 36 | Discounts and tips |
| Area of a circle, r = 5 | π × 5² | 78.53981634 | Geometry formulas |
| 12 factorial | 12! | 479001600 | Probability and arrangements |
| Order of operations | (3 + 4)² ÷ 7 | 7 | Checking PEMDAS steps |
| $5,000 at 8% for 5 years | 5000 × 1.08^5 | 7346.640384 | Compound interest |
| One seventh as a decimal | 1 ÷ 7 | 0.1428571429 | Fractions to decimals |
Results are rounded to 10 significant digits. Trig examples use DEG mode.
What Can the Solver Calculator Solve?
One free solver calculator covers the math you meet from middle school to college and on the job.
Algebra & Order of Operations
Enter long expressions with nested parentheses and the solver calculator applies PEMDAS for you. Review PEMDAS
Trigonometry
Sine, cosine and tangent in degrees or radians, with exact results for common angles such as sin(30) = 0.5.
Logarithms & Exponentials
Base-10 log, natural log and e^x for science, finance and growth problems.
Powers & Roots
Squares, cubes, any power with xʸ, reciprocals and square roots in one tap.
Percentages & Fractions
Turn any fraction into a decimal or percentage, then see the method in our worked guides. Convert fractions to percentages
Factorials & Probability
Use n! to count arrangements and combinations for probability and statistics homework.
Calculator Unblocked – Use It Anywhere
Many students search for a calculator unblocked at school because heavy apps and browser extensions are often disabled on managed devices. SolverCalc is an unblocked calculator in the simplest sense: it is one lightweight web page with no downloads, no extensions and no logins.
That means it typically opens on school Chromebooks, library computers and work laptops anywhere regular educational websites are permitted. We don’t promise to get around network filters, and we ask every visitor to respect their school’s or employer’s technology policy.
Add the unblocked calculator to your Chromebook
- Open SolverCalc in Chrome.
- Select the three-dot menu (⋮) in the top-right corner.
- Choose Cast, save and share → Install page as app (called Create shortcut in older versions).
- Open it from your shelf or launcher like any other app.
If installing apps is turned off on your device, press Ctrl + D to bookmark the page instead.
Calculator Unblocked Games & Number Puzzles
Looking for calculator unblocked games? Skip the downloads and turn the calculator itself into a challenge. Every calculator game unblocked on this page needs nothing but the keypad and a few minutes.
- Make 24
- Target 100
- Upside-Down Words
- Estimation Sprint
Play
Calculator Games You Can Play Unblocked
Quick number challenges for class warm-ups, study breaks or a friendly race. Use the calculator above to check every answer.
Target 100
Easy1+ players
Use the digits 1 to 9 in order, each one once, with only + and × to reach exactly 100.
Show a solution
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 × 9 = 100.
Upside-Down Words
Easy1+ players
Type a number, then turn your screen upside down to read it as a word. Which number spells hELLO?
Show a solution
0.7734 reads hELLO upside down (ignore the decimal point), and 317 spells LIE.
Estimation Sprint
Easy2+ players
One player calls out a problem such as 17 × 23. Everyone writes a guess, then the calculator reveals the winner.
Show a solution
17 × 23 = 391. Swap roles and try 3-digit numbers for a tougher round.
Doubling Ladder
Medium1+ players
Start at 1 and keep pressing × 2 then =. Predict how many doublings it takes to pass one million.
Show a solution
20 doublings: 2²⁰ = 1,048,576, while 2¹⁹ = 524,288 is still below a million.
Factorial Race
Hard2+ players
Race to find the smallest whole number n where n! is greater than one million using the n! key.
Show a solution
n = 10, because 10! = 3,628,800 and 9! = 362,880.
Quick Answers: Fractions & Percentages
Three of the most searched conversions, solved step by step.
What is 11/17 as a percentage?
- 11 ÷ 17 = 0.6470588…
- 0.6470588 × 100 = 64.70588…
64.71%
See the full 11/17 percentage solutionWhat is 3/5 as a percentage?
- 3 ÷ 5 = 0.6
- 0.6 × 100 = 60
60%
Learn two ways to convert 3/5What is 2/9 as a decimal and percentage?
- 2 ÷ 9 = 0.2222… (0.2̅)
- 0.2222… × 100 = 22.22…
22.22%
Read why 2/9 is a repeating decimalMath Solutions Library
Clear, worked explanations for the problems students ask about most.
Basic Algebra
Solve equations, follow the order of operations and isolate x with clear, worked steps.
Percent & Decimal
Turn fractions into decimals and percentages, with rounding explained.
Fractions
Find equivalent fractions and simplify fractions to lowest terms.
Perfect for Students and Professionals
Students
Check homework, convert fractions to percentages and learn the method behind each answer with our free online calc and step-by-step guides.
Teachers
Project the calculator in class, share article links as homework help and use the number puzzles as quick warm-up activities.
Professionals
Engineers, accountants and tradespeople can run quick trig, percentage and power calculations without opening a spreadsheet.
Tips
Calc Keyboard Shortcuts
Typing is the fastest way to use this free online calc on a laptop, desktop or Chromebook. Click anywhere on the page and start typing—no need to aim for buttons.
On phones and tablets, the large touch keys do the same job. Use the history list to reuse any of your last five answers, or tap Ans to continue from the previous result.
| Key | Action |
|---|---|
| 0 – 9 and . | Enter numbers and decimals |
| + − * / | Add, subtract, multiply and divide |
| ^ | Raise to a power (xʸ) |
| ( ) | Open and close parentheses |
| % | Percent |
| ! | Factorial |
| Enter or = | Calculate the answer |
| Backspace | Delete the last entry |
| Esc or Delete | Clear everything (AC) |
Online Calculator vs Physical Calculator
A handheld calculator still has its place—especially in exams—but here is how they compare day to day.
| Feature | SolverCalc (online) | Physical calculator |
|---|---|---|
| Cost | Free | Typically $15–$150 |
| Availability | Any device with a browser | Only when you carry it |
| Updates | Improves automatically | Fixed features; buy a new model |
| Sharing | Send a link to a worked solution | Show the screen in person |
| Accessibility | Keyboard, screen reader and zoom support | Small buttons and display |
| Exams | Not allowed in most exams | Often required or permitted |
Frequently Asked Questions
Answers about the solve calculator, unblocked access and common conversions.
Is this solve calculator free?
Yes. The SolverCalc solve calculator is 100% free to use, with no account, no trial period and no download. Every scientific function and every math solution article is available to everyone.
Is the calculator unblocked at school?
Our unblocked calculator is a single lightweight web page with no downloads, extensions or logins, so it usually loads wherever ordinary educational websites are allowed, including school Chromebooks. We do not bypass network filters—if your school blocks the site, please follow your school’s rules and ask your teacher or IT team.
What is a calculator unblocker?
People use the phrase “calculator unblocker” when they are looking for a calculator that opens in a normal browser without installing anything. That is what this site is: a plain web calculator. It is not a proxy or a tool for getting around school or workplace restrictions.
Can I play calculator games unblocked?
You can try the number challenges on this page—like making 24 from four numbers or a factorial race—right in the calculator. They are simple math puzzles, not downloaded games, so any calculator game unblocked here is just you, a friend and some numbers.
How do I convert 3/5 to a percentage?
Divide 3 by 5 to get 0.6, then multiply by 100. So 3/5 = 60%. You can also scale the fraction: 3/5 = 60/100, which is 60%.
What is 11/17 as a percentage?
11 ÷ 17 = 0.6470588…, and multiplying by 100 gives about 64.71% when rounded to two decimal places (64.7% to one decimal place).
Does the calc work on mobile?
Yes. The calc is fully responsive with large touch-friendly keys, so it works on phones, tablets, Chromebooks, laptops and desktop computers in any modern browser.
Can the solver calculator solve equations for x?
The solver calculator evaluates expressions, so you can work through each step of an equation and check your answer by substituting it back in. For full step-by-step methods, read our guides to solving linear equations and solve-for-x basics in the Math Solutions library.
Does the unblocked calculator work offline?
Once the page is open and you have used the calculator once, every calculation runs on your own device, so a dropped Wi-Fi connection will not interrupt you. Reloading the page needs an internet connection.
What makes SolverCalc different from other online calculators?
SolverCalc pairs a full scientific solver calculator with step-by-step math solutions, free number games and keyboard shortcuts. There is no sign-up, no download and no tracking of your calculations.
Do you store my calculations?
No. Every calculation runs inside your own browser. Your history of the last five results lives only in the open page and disappears when you close or refresh it. Nothing is sent to our servers.
Ready to solve your next problem?
The calculator is waiting at the top of the page—no sign-up required.
Open the calculator