Online Calculator
Fast browser calculator with Standard, Scientific, Financial & Unit Converter modes.
% is single-operand (÷100, e.g. 50% → 0.5)
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Online Calculator — Free Standard, Scientific & Financial Math Suite
Designed for students, engineers, accountants, and everyday problem-solvers, this calculator eliminates floating-point rounding errors (e.g., 0.1 + 0.2 = 0.3) through an IEEE-754 corrected evaluation pipeline. It requires no downloads, works offline, and guarantees total privacy with zero data sent to external servers.
Specialized Calculators & Estimators
Dedicated, in-depth calculators for finance, health, taxation, and lifestyle.
Monthly EMI payments, principal vs interest amortisation, and extra prepayment savings.
Compound growth, recurring deposits, inflation-adjusted real returns, and schedule export.
Tax-free retirement balance, 3-way comparison (Roth vs Traditional vs Taxable), and lifetime savings.
Progressive federal tax brackets, standard deductions, FICA payroll taxes, and net take-home pay.
Hourly wages, 1.5x overtime, salaried frequencies, pre-tax deductions, and printable pay stubs.
Real-time forex exchange rates for 35+ currencies, conversion cheat sheets, and bank fee comparisons.
WHO body mass index, visual gauge needle, healthy weight range, and Prime ratio.
Mifflin-St Jeor daily energy expenditure (TDEE), BMR, and macro balance targets.
Realistic target weight loss dates, metabolic adaptation pace, and 500-1000 kcal deficits.
Accurate 6-measurement method across US, UK, EU, AU, FR sizing and sister sizes.
Multi-room area totals, rectangular/round/triangle shapes, material cost and 5%–15% waste factor estimates.
Calculate total individual tiles, boxes needed, and grout weight in lbs/kg for standard and herringbone patterns.
Estimate paint gallons, liters, and primer for walls and ceilings with door and window cutout deductions.
Calculate cubic yards, cubic feet, and 2.0 / 3.0 cu ft retail bags for flower beds and trees.
Estimate tons, metric tonnes, cubic yards, and dump truck loads for pea gravel, crushed stone, topsoil, and sand.
Estimate cubic yards, cubic meters, and 80lb/60lb bags for slabs, footings, columns, stairs, and post holes.
Add, subtract, multiply, divide, simplify, and convert mixed numbers with step-by-step solutions and pie models.
Order of Operations: PEMDAS & BODMAS Rules
All expressions evaluated in this calculator strictly follow universal algebraic operator precedence from left to right:
| Rank | PEMDAS / BODMAS Step | Symbols | Evaluation Rule |
|---|---|---|---|
| 1st | Parentheses / Brackets | ( ) , [ ] | Innermost expressions are resolved first |
| 2nd | Exponents / Orders / Roots | xʸ, x², √x, ∛x | Powers, roots, and factorials (n!) |
| 3rd | Multiplication & Division | ×, ÷, * , / | Equal priority; evaluated from left to right |
| 4th | Addition & Subtraction | +, − | Equal priority; evaluated from left to right |
- Pi (π)
3.1415926535... - Euler's Number (e)
2.7182818284... - Pythagorean Identity
sin²(θ) + cos²(θ) = 1 - Tangent Definition
tan(θ) = sin(θ) / cos(θ)
- Compound Interest
A = P(1 + r/n)^(nt) - Monthly Loan EMI
E = [P · r(1+r)^n] / [(1+r)^n - 1] - Percentage Change
[ (V₂ − V₁) / V₁ ] × 100 - Simple Interest
I = P × r × t
Keyboard Shortcuts & Quick Typing Guide
Type directly on your physical keyboard for ultra-fast, zero-friction calculations:
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Client-Side Execution & Privacy Policy
MakerHub Calculator evaluates all arithmetic operations locally within your device’s JavaScript engine. Your mathematical inputs, loan data, financial figures, and calculation history are never uploaded, logged, or shared across the network.