Available now
Percentage Calculator
Calculate percentages, percentage increases, percentage decreases, percentage differences, and common percentage problems.
Use calculator →Lamtas Tools
Mathematical Calculators
Use free online mathematical calculators from Lamtas for percentages, fractions, ratios, algebra, statistics, probability, geometry, equations, calculus, trigonometry, and everyday mathematics. Our tools are designed to make calculations faster, clearer, and easier to understand.
Available Mathematical Calculators
Use the available Lamtas mathematical calculators for everyday arithmetic, algebra, probability, trigonometry, calculus, and advanced mathematics.
Available now
Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions.
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Scientific Calculator
Perform advanced arithmetic, powers, roots, logarithms, and trigonometric calculations.
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Equation Solver
Solve simple linear equations and calculate the unknown variable.
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Quadratic Equation Calculator
Solve quadratic equations and calculate real or complex roots.
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Logarithm Calculator
Calculate logarithms using a valid positive base and number.
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Exponent Calculator
Calculate powers by raising a base number to an exponent.
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Factorial Calculator
Calculate the factorial of a non-negative integer.
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Permutation Calculator
Calculate permutations and determine the number of ordered arrangements.
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Combination Calculator
Calculate combinations and determine the number of unordered selections.
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Trigonometry Calculator
Calculate sine, cosine, and tangent values for angles in degrees.
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Unit Circle Calculator
Calculate the coordinates of an angle on the unit circle.
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Matrix Calculator
Calculate the determinant of a 2×2 matrix.
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Derivative Calculator
Estimate the derivative of a function using numerical differentiation.
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Integral Calculator
Estimate a definite integral using the trapezoidal rule.
Use calculator →Mathematical Calculator Categories
Explore mathematical tools by calculation type, from basic arithmetic and percentages to algebra, statistics, probability, geometry, calculus, and advanced mathematics.
Basic Math Calculators
Handle everyday calculations involving numbers, percentages, fractions, ratios, and arithmetic.
- Percentage Calculator- Fraction Calculator
- Decimal Calculator
- Ratio Calculator
- Proportion Calculator
- Number Calculator
- Mixed Number Calculator
- Simplification Calculator
Algebra Calculators
Solve common algebra problems involving equations, expressions, variables, powers, and logarithms.
- Algebra Calculator
- Linear Equation Calculator
- Quadratic Equation Calculator- Equation Solver- Inequality Calculator
- Exponent Calculator- Logarithm Calculator- Polynomial Calculator
Statistics Calculators
Analyze numerical datasets using averages, dispersion, percentiles, and statistical measures.
- Mean Calculator
- Median Calculator
- Mode Calculator
- Range Calculator
- Variance Calculator
- Standard Deviation Calculator
- Percentile Calculator
- Quartile Calculator
Probability Calculators
Calculate probabilities, combinations, permutations, and other common probability measures.
- Probability Calculator
- Permutation Calculator- Combination Calculator- Odds Calculator
- Conditional Probability Calculator
- Binomial Probability Calculator
- Expected Value Calculator
- Probability Distribution Calculator
Geometry Calculators
Calculate areas, perimeters, volumes, distances, angles, and other geometric measurements.
- Area Calculator
- Perimeter Calculator
- Volume Calculator
- Triangle Calculator
- Circle Calculator
- Rectangle Calculator
- Square Calculator
- Geometry Calculator
Scientific & Advanced Math
Work with scientific notation, powers, roots, trigonometry, matrices, and advanced mathematical calculations.
- Scientific Calculator
- Scientific Notation Calculator
- Square Root Calculator
- Cube Root Calculator
- Factorial Calculator- Trigonometry Calculator- Sine Calculator
- Cosine Calculator
- Unit Circle CalculatorLinear Algebra
Work with matrices, determinants, vectors, and other linear algebra calculations.
- Matrix Calculator
- Determinant Calculator
- Vector Calculator
- Eigenvalue Calculator
- Linear Algebra Calculator
Calculus Calculators
Explore derivatives, integrals, limits, and other common calculus calculations.
- Derivative Calculator- Integral Calculator
- Definite Integral Calculator
- Limit Calculator
- Differential Equation Calculator
Common Mathematical Formulas
Understanding the formula behind a calculation makes it easier to interpret results and apply them correctly.
| Metric | Formula or Explanation |
|---|---|
| Percentage | Percentage = Part ÷ Whole × 100 |
| Average | Mean = Sum of Values ÷ Number of Values |
| Ratio | Ratio compares two or more quantities using proportional relationships. |
| Range | Range = Maximum Value − Minimum Value |
| Variance | Variance measures the average squared deviation from the mean. |
| Standard Deviation | Standard Deviation = Square Root of Variance |
| Probability | Probability = Favorable Outcomes ÷ Total Possible Outcomes |
| Percentage Change | Percentage Change = (New Value − Original Value) ÷ Original Value × 100 |
What Can Mathematical Calculators Help With?
Mathematical calculations appear in business, finance, science, engineering, education, research, technology, construction, and everyday decision-making. Online calculators can reduce repetitive manual work while helping users understand how results are produced.
✓Calculate percentages and percentage changes
✓Solve everyday arithmetic problems
✓Analyze numerical datasets
✓Calculate averages and statistical measures
✓Solve equations and algebraic expressions
✓Calculate probability and expected outcomes
✓Calculate areas, perimeters, and volumes
✓Check mathematical calculations quickly
✓Support business and financial calculations
✓Support research and data analysis
✓Assist with school and university learning
✓Understand mathematical formulas and results
Example: Percentage Calculation
Suppose a business earns KSh 500,000 in revenue and wants to determine what 20% of that amount represents.
Percentage
20%
Base amount
KSh 500,000
Result
KSh 100,000
Calculation: 20 ÷ 100 × 500,000 = 100,000.
Fast Calculations
Perform common mathematical calculations without repeatedly working through formulas manually.
Clear Results
Calculators can present results alongside formulas and explanations to make calculations easier to understand.
Multiple Applications
Mathematical tools can support business, research, finance, education, technology, engineering, and personal planning.
Online Access
Access useful mathematical calculations online without installing specialized desktop software.
Mathematics Topics
The Lamtas mathematical tool library can support a broad range of mathematics topics.
Percentages and percentage change
Fractions, decimals, and ratios
Algebraic equations
Averages and statistical measures
Probability and combinations
Geometry and measurement
Powers, roots, and logarithms
Mathematical formulas
Related Lamtas Tools
Unit Converters
Convert length, weight, temperature, area, volume, speed, time, pressure, energy, and digital storage units.
Explore tool →Finance Calculators
Calculate compound interest, investment growth, financial returns, loans, savings, and other financial metrics.
Explore tool →Business Calculators
Analyze profit margins, break-even points, ROI, pricing, revenue, costs, and other business metrics.
Explore tool →AI & Data Tools
Explore data analysis, statistics, AI, machine learning, and business intelligence tools.
Explore tool →Time & Date Tools
Calculate working days, date differences, durations, deadlines, and other time-related measurements.
Explore tool →Frequently Asked Questions
What is a mathematical calculator?
A mathematical calculator is an online tool that performs a specific mathematical operation or group of calculations. Examples include percentage, fraction, algebra, statistics, probability, geometry, calculus, and scientific calculators.
What can I calculate with online math tools?
Depending on the calculator, you can calculate percentages, fractions, ratios, averages, equations, probability, statistical measures, areas, volumes, powers, roots, logarithms, trigonometric values, derivatives, integrals, and many other mathematical quantities.
Is the Lamtas Percentage Calculator available?
Yes. The Lamtas Percentage Calculator can calculate percentages, percentage increases, percentage decreases, and percentage differences.
Are mathematical calculators useful for business?
Yes. Businesses use mathematical calculations for pricing, margins, percentages, growth rates, forecasting, statistics, budgeting, analysis, and operational planning.
Can mathematical calculators be used for research?
Yes. Mathematical and statistical calculators can assist with numerical analysis, descriptive statistics, probability, percentages, ratios, and other quantitative research tasks.
Are Lamtas mathematical calculators free?
Lamtas provides free online calculation tools to make common mathematical tasks more convenient. Additional tools can be developed and added as the platform expands.
Need Professional Help With Your Numbers?
Lamtas also provides professional finance, accounting, research, technology, AI, business, and consulting services for organizations and individuals.