Fast, clear calculators
Calculator Authority
Mobile-first calculators with readable results, transparent formulas, examples, and plain-English context.
AI Tools Spotlight
All AI calculatorsEstimate AI model, agent, and usage costs with transparent assumptions before you scale.
Start with a category
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AI Agent Cost Calculator
Estimate a multi-step AI agent's monthly model-token and tool costs from tasks, model calls, and tokens per call.
AI Token Cost Calculator
Estimate direct AI model token cost from prompt size, response size, request volume, and the selected per-token pricing tier.
Loan Payment Calculator
Estimate the monthly principal-and-interest payment for a fixed-rate loan, then compare how the amount borrowed, rate, and term affect repayment pressure.
Compound Interest Calculator
Project how a starting balance may grow over time when interest or returns compound, and test how rate, time, and compounding frequency change the ending estimate.
Calculator Categories
AI
AI cost, usage, budget, ROI, and operations calculators for teams using LLMs.
Finance
Everyday money calculators for loans, interest, savings, and planning.
Health
Simple wellness calculators for body measurements and daily estimates.
Math
Practical math calculators for percentages, ratios, and common conversions.
Business
Business calculators for revenue, margins, pay estimates, and creator monetization.
Creator Revenue
Creator income calculators for platform revenue, sponsorships, newsletters, and courses.
Retirement
Retirement calculators for savings projections, contribution goals, withdrawals, FIRE planning, and income gaps.
Insurance
Insurance calculators for coverage needs, deductibles, premiums, and simple policy planning estimates.
Energy & Home
Household energy and utility calculators for electricity costs, AC usage, solar savings, EV charging, and water use.
Property & Housing
Property and housing calculators for rent-versus-buy comparisons, deposits, affordability, rental yield, and moving costs.
Travel & Location
Travel and location calculators for trip budgets, accommodation comparisons, currency costs, fuel costs, and cost-of-living differences.
Work & Salary
Employment and pay calculators for take-home estimates, overtime, freelance rates, commute costs, and paid time off value.
Productivity & Time
Productivity and time calculators for meeting costs, time savings, focus time, task capacity, and delay cost estimates.
Education & Study
Education and study calculators for grades, study time, tuition costs, course workload, and learning progress estimates.
Food & Household
Food and household calculators for grocery budgets, meal costs, recipe scaling, bulk-buy savings, and supply costs.
Pets
Pet cost calculators for food, grooming, boarding, dog walking, and annual care estimates.
Tools for practical decisions
Start with the real-world question, then test the assumptions behind the result.
Rent or buy a home?
Compare recurring housing costs across alternative living arrangements.
What is a customer worth?
Estimate long-term customer contribution using frequency, retention and margin.
What does a meeting cost?
Value the people-hours committed to recurring meetings.
Annual income estimate
Convert pay periods to a yearly gross-income view.
Average order value
Compare revenue per order across sales periods.
AI support savings
Test ticket deflection assumptions against service costs.
Home deposit target
Plan savings for a target property deposit.
Financial independence target
Explore portfolio goals against annual spending assumptions.
Cost of living comparison
Estimate spending differences when considering a move.
Billable hours and revenue
Connect realistic chargeable time to gross earnings.