Practical online calculators
Practical calculators for everyday decisions
Work through money, home, pet, health, travel, and time questions with clear inputs, visible assumptions, and useful result breakdowns. U.S. and Canadian differences are included where they materially affect a tool.
- Clear inputs
- Assumptions shown where relevant
- Planning-focused results
From question to useful result
See what goes into the calculation
Enter the details
Use clearly labelled inputs and units.
Review the context
Check assumptions and regional options when they matter.
Read the breakdown
Use the result, supporting figures, and explanation together.
Some tools calculate a defined result; planning tools may provide estimates that depend on the assumptions you enter.
Find your starting point
Choose the right calculator
Pick the type of decision you are working through, then compare the available tools in that category.
Finance
Payments, salary, taxes, prices, and everyday money planning.
Home
Material quantities, waste allowances, and project estimates.
Pets
Feeding, supplies, age, and life-stage planning for pets.
Health
Simple walking, pace, distance, and activity planning tools.
Travel
Fuel costs, shared expenses, and practical trip planning.
Time
Age, date, duration, and time-zone calculations.
Featured tools
Popular calculators by category
Preview a category here or open the complete calculator directory.
Finance Calculators
Popular calculators for loans, taxes, discounts, income, and everyday money decisions.
Mortgage Calculator
Estimate monthly mortgage payments with taxes, insurance, PMI, and HOA fees.
Loan Calculator
Calculate monthly loan payments, total interest, and repayment cost.
Salary Calculator
Estimate salary, hourly pay, monthly income, and simple paycheck-style breakdowns.
Car Loan Calculator
Estimate auto loan payments, interest, and total vehicle financing cost.
Sales Tax Calculator
Calculate sales tax, before-tax price, and final total.
Tip Calculator
Calculate tips, split bills, and estimate per-person totals quickly.
How FigureNorth builds calculators
Defined logic, tested inputs, and visible context
Each calculator is built around explicit formulas or defined calculation logic. Tool pages show assumptions, explanations, worked examples, or formulas where they help users understand a result.
Formula and logic
Inputs are connected to a defined calculation, with assumptions shown where relevant.
Development checks
Calculation logic is reviewed during development, with common inputs and boundary conditions checked where relevant.
Regional context
U.S. and Canadian logic is separated only in tools where that difference affects the result.
Calculations and estimates
Defined calculations can be exact for the values entered; planning estimates depend on their assumptions.
Always review the inputs, units, assumptions, and notes shown on the individual tool before using its result.
Useful for planning, with clear limits
FigureNorth tools are for informational and planning use. Results may not capture every personal, local, or professional requirement. Verify important financial, medical, legal, or project decisions with an appropriate qualified professional.