Clean calculators for real life
Free calculators for smarter everyday decisions
Calculate costs, totals, percentages, budgets, business metrics, health estimates, construction materials, crypto scenarios, travel expenses, tech requirements, and more with simple tools built for real life.
Today
Planning dashboard
Loan Payment
$501/mo
VAT
$20 tax
Travel Budget
$3,214
Hosting Cost
$50/mo
AI Hardware
16 GB VRAM
Profit Margin
38%
- No sign-up
- Privacy-friendly calculator inputs
- Estimates with clear limits
Search calculators
Search the full TotalNumbers calculator library and open the tool that fits your planning question.
Subhubs
Calculator hubs for bigger decisions
Calculator hub
Finance Calculators
Plan payments, savings goals, debt payoff, investment growth, retirement, inflation, and monthly budgets with connected finance calculators.
Calculator hub
Home Calculators
Estimate mortgage payments, affordability, closing costs, rent vs buy decisions, construction materials, and home energy costs.
Calculator hub
Business Calculators
Connect profit, pricing, SaaS metrics, ecommerce fees, marketing performance, and cash runway into practical planning estimates.
Calculator hub
Developer Tools
Use browser-only developer utilities for formatting, validating, converting, counting, previewing, and checking common web development and SEO values.
Calculator hub
Crypto Calculators
Estimate crypto ROI, fees, swaps, market cap, FDV, mining profitability, staking-style yield scenarios, leverage, liquidation distance, funding, and portfolio risk from your own inputs.
Calculator hub
Car Cost Calculators
Estimate car ownership cost, auto loan payments, fuel cost, commute cost, and related budget pressure before comparing vehicles.
Calculator hub
Energy Calculators
Estimate electricity usage, solar payback, EV charging, battery runtime, generator runtime, heating, cooling, laundry, water, and home energy costs.
Categories
Find the right calculator faster
Finance
Plan payments, debt, savings, investing, taxes, and percentages.
17 Calculators
Business
Estimate margins, markup, CAC, LTV, churn, SaaS revenue, runway, payback, ecommerce profit, fees, and rates.
17 Calculators
Marketing
Calculate ROAS, MER, lead value, ad metrics, email metrics, A/B tests, funnels, clicks, impressions, and revenue.
9 Calculators
Tech
Estimate API costs, hosting, hardware, storage, bandwidth, uptime, and web costs.
10 Calculators
Crypto
Estimate crypto ROI, fees, swaps, coin conversions, market cap, FDV, mining profitability, leverage, liquidation risk, funding fees, and drawdown scenarios.
26 Calculators
Health
Estimate hydration, body composition, BMI, BMR, and other basic health indicators.
4 Calculators
Construction
Estimate construction materials, waste, and costs for walls, roofs, decks, fences, floors, landscaping, concrete, paint, lumber, stairs, and pools.
15 Calculators
Fitness
Plan calorie targets, protein intake, pace, deficits, and fitness-related estimates.
3 Calculators
Travel
Plan trip budgets, fuel costs, commute costs, buffers, and shared expenses.
8 Calculators
Automotive
Estimate car payments, ownership, insurance, depreciation, EV charging, maintenance, road trips, tires, refinancing, and used car costs.
10 Calculators
Real Estate
Plan rent, buying power, mortgage payments, closing costs, PMI, taxes, refinance decisions, and home comparisons.
13 Calculators
Education
Estimate grades, percentages, study planning, and school math.
7 Calculators
Math
Work with fractions, ratios, statistics, units, geometry, measurement, formulas, and number operations.
16 Calculators
Developer Tools
Browser-only utilities for CSS units, colors, URLs, JSON, CSV, regex, JWTs, hashes, UUIDs, timestamps, cron, metadata, robots.txt, sitemaps, schema, content checks, images, ratios, and layouts.
37 Calculators
Lifestyle
Everyday calculators for shared costs, energy, subscriptions, tips, totals, and planning.
8 Calculators
Energy
Estimate electricity, solar, EV charging, battery, generator, heating, cooling, water, and home utility costs.
12 Calculators
Date & Time
Plan dates, deadlines, ages, business days, work hours, payroll hours, durations, meetings, and countdowns.
10 Calculators
Collections
Calculator ecosystems
Collection
Home Planning
Compare mortgage payments, affordability, closing costs, PMI, refinancing, taxes, rent-vs-buy scenarios, and down-payment assumptions before making housing decisions.
ExploreCollection
Income Planning
Turn salary, savings, rent, travel, car, and inflation assumptions into practical monthly planning numbers.
ExploreCollection
Profitability
Connect ROI, margins, break-even points, CAC, LTV, payback, recurring revenue, and ad performance before committing budget.
ExplorePopular
Popular calculators
Home Affordability
Estimate an affordable home price from income, debts, down payment, rate, taxes, insurance, and HOA.
Real EstateLoan Payment
Estimate monthly loan payments, total interest, and total repayment.
FinanceSavings Goal
Estimate how long it may take to reach a savings goal.
FinanceCompound Interest
Estimate investment growth with compounding and contributions.
FinanceVAT
Add or extract VAT from a price and see net, tax, and gross totals.
FinancePercentage
Calculate percentages, increases, decreases, and simple percentage totals.
FinanceProfit Margin
Calculate gross profit, margin percentage, and markup from revenue and cost.
BusinessROAS
Calculate return on ad spend from revenue and advertising cost.
MarketingAd Revenue
Estimate monthly website ad revenue from pageviews, RPM, and fill rate.
MarketingHosting Cost
Estimate monthly website hosting costs from plan, traffic, storage, backups, and support.
TechAI Hardware
Estimate VRAM and RAM needs for running local AI models.
TechBMI
Estimate body mass index from height and weight.
HealthAbout TotalNumbers
Fast estimates without spreadsheet friction
TotalNumbers is a modern calculator platform for everyday decisions: money, business, marketing, technology, AI, crypto, health, fitness, construction, travel, cars, real estate, education, developer utilities, and lifestyle planning. Each calculator is built around a clear formula, readable inputs, and a result that explains what changed.
Calculators help because they make assumptions visible. A loan term, tax rate, conversion metric, hosting add-on, or trip buffer can change a decision quickly. TotalNumbers gives you a fast way to compare scenarios before you ask for quotes, open a spreadsheet, or commit to a purchase.
The site is free because it is designed for passive, ad-supported access. Ad containers reserve layout space and stay clearly labeled, so the tools remain easy to use. Future versions can support affiliate cards or premium exports without changing the core calculator experience.
Results are estimates only. For financial, health, business, legal, tax, or technical decisions that matter, verify the output with qualified professionals, official provider quotes, current rules, and your own records.
Frequently Asked Questions
Are the calculators on TotalNumbers free?+
Yes. TotalNumbers calculators are free to use. The site is supported by carefully placed advertising.
Are the calculator results saved?+
No. In this version, calculator inputs run in your browser and TotalNumbers does not save your calculation results.
Can I use these calculators for business?+
Yes. Many calculators are designed for business planning, quotes, margins, ad metrics, and website operations, but important decisions should be verified.
How accurate are the calculators?+
They are estimates based on the inputs and formulas shown on each page. Real-world fees, taxes, policies, and personal circumstances can change final numbers.
Can I suggest a new calculator?+
Yes. Use the contact page to suggest a new calculator or improvement to an existing tool.
Why does TotalNumbers show ads?+
Ads help keep the calculators free while reserving space cleanly so calculator actions remain easy to use.