Online Scientific Calculator
A fast, exam-ready scientific calculator designed for Pakistani secondary and higher secondary students (Classes 9, 10, 11, and 12). Evaluate trigonometry, logarithms, fractions, roots, and complex board exam numericals with instant feedback.
Board Exam Scientific Calculator
Class 9–12 Physics, Chemistry & Math
Keyboard supported: numbers, +-*/, Enter to evaluate, Esc to clear.
Essential Board Exam Numerical Formulas
Quick-reference formulas commonly tested in BSEK Karachi, FBISE, and provincial boards.
Physics Formulas
Classes 9 & 10 (SSC)
- 1/f = 1/p + 1/qMirror & Lens Formula (Unit 13 Optics)
- v = f · λWave Speed Equation (Unit 10 & 11)
- F = G(m₁m₂)/r²Newton's Law of Universal Gravitation
- V = I · R & P = V · IOhm's Law & Electrical Power
Chemistry Formulas
Classes 9 & 11
- Moles (n) = mass / Molar MassStoichiometry & Mole Concept calculations
- P₁V₁/T₁ = P₂V₂/T₂General Gas Equation (Charles & Boyle's Laws)
- Molarity = moles of solute / dm³Solution concentration and dilution: M₁V₁ = M₂V₂
- pH = −log₁₀[H⁺]Acids, Bases, and Ionic Equilibria
Mathematics Formulas
Classes 9, 10, 11, 12
- x = (−b ± √(b² − 4ac)) / 2aQuadratic Formula with discriminant analysis
- sin²θ + cos²θ = 1Fundamental Pythagorean Trigonometric Identity
- log(a · b) = log(a) + log(b)Logarithmic Product & Quotient Rules
- d = √((x₂ − x₁)² + (y₂ − y₁)²)Distance Formula between two coordinate points
Standard Trigonometric Values (Degree Mode)
Always verify your calculator is set to DEG mode when evaluating board examination trigonometry problems.
| Function | 0° | 30° (π/6) | 45° (π/4) | 60° (π/3) | 90° (π/2) |
|---|---|---|---|---|---|
| sin(θ) | 0 | 1/2 (0.5) | 1/√2 (0.7071) | √3/2 (0.8660) | 1 |
| cos(θ) | 1 | √3/2 (0.8660) | 1/√2 (0.7071) | 1/2 (0.5) | 0 |
| tan(θ) | 0 | 1/√3 (0.5774) | 1 | √3 (1.7321) | Undefined |
Fundamental Science Constants
9.8 m/s²
Acceleration due to Earth's gravity
3.0 × 10⁸ m/s
Speed of light in vacuum
6.022 × 10²³
Particles per mole of substance
8.314 J/(mol·K)
Ideal universal molar gas constant
Most Pakistani education boards (including the Board of Secondary Education Karachi, Board of Intermediate Education Karachi, and the Federal Board of Intermediate and Secondary Education Islamabad) permit non-programmable scientific calculators for Physics, Chemistry, and Mathematics examinations. Programmable calculators, graphing calculators, and mobile phone apps are strictly prohibited inside examination centers. Always verify with your center invigilator before the start of the paper.