Guide
Calculator formulas, worked examples and assumptions, organized by topic.
Choose a topic to understand the inputs, results and calculation limits. Each guide links to its calculator.
Work and taxes
Understand salaries, benefits and taxes in Estonia.
Calculators for this topic →Money and investments
Manage money, evaluate investment returns and securities.
- Loan
- Leasing
- Interest rate change
- Future value of savings
- Savings account
- Term deposit
- Currency converter
- Equipment: buy or lease
- Investment project appraisal
- Investment return
- Portfolio return
- Portfolio allocation and rebalancing
- Cost of equity (CAPM)
- Weighted average cost of capital (WACC)
- Business valuation (DCF)
- Valuation using multiples
- Stock metrics
- Dividend discount valuation
- Bond price and yield
Everyday
Dates, units of measurement and everyday conversions.
Calculators for this topic →Car
Know what owning a car costs.
Calculators for this topic →Property
Compare renting, buying and property investment returns.
Calculators for this topic →Health
Body and health estimates with clear limitations.
Calculators for this topic →Business
Pricing, costs and financial ratios.
- Markup and margin
- Break-even point
- Unit cost
- Hourly rate and service price
- Financial ratios
- Working capital
- Cash flow forecast and shortfall
- Depreciation
Physics and mathematics
Formulas, numbers and shapes with clear diagrams.
- Time, distance and speed
- Gravitational force
- Acceleration, time and speed
- Newton's second law
- Ohm's law
- Torque
- Fractions
- Powers, roots and logarithms
- Golden ratio
- Area of shapes
- Pythagorean theorem
- Circle
- Volume of solids
- Quadratic equation
- Trigonometry
- Proportion
- Triangle
- Percentages and discounts