Clear answers. No anxiety.
Free calculators for money, home, health, travel, conversions, work, and everyday decisions.
What ClearCalcNow offers
ClearCalcNow is a free library of 212 online calculators and unit converters, available in English and Spanish. Browse the tools and get results without creating an account.
Find calculators for loans, savings and budgets; material estimators for home projects; unit converters; and tools for health, dates, travel and mathematics. Each calculator page includes an explanation of its method, a worked example, and its assumptions and limitations.
Calculations run in your browser. Results are estimates and depend on your inputs; verify units and assumptions before making important decisions. These tools do not replace professional advice.
Explore by category
- Unit Conversion Calculators — Convert everyday units and measurements.
- Finance & Money Calculators — Plan loans, savings, taxes, and budgets.
- Construction & Material Calculators — Estimate materials, labor, and project costs.
- Health & Fitness Calculators — Check health, nutrition, and fitness estimates.
- Vehicle & Travel Calculators — Estimate fuel, mileage, and travel costs.
- Shopping & Percentage Calculators — Compare discounts, prices, tips, and margins.
- Random & Decision Tools — Pick options and generate random results.
- Time & Date Calculators — Work with dates, ages, hours, and time.
- Home & Energy Calculators — Estimate household and energy costs.
- General Math Calculators — Solve everyday numbers, ratios, and formulas.
Featured calculators
- 45 Minutes From Now — Find a future time from the current time and added minutes.
- What Time Can I Leave — Find a leave time from the start time and shift length.
- Loan Payment Calculator — Estimate monthly loan payments from the amount, annual rate, and repayment term.
- Discount Calculator — Calculate a sale price from the original price and discount percentage.
- Trip Gas Cost — Estimate trip gas cost from trip distance, vehicle efficiency, and fuel price.
- Home Electricity Cost Calculator — Estimate electricity cost from power use, operating time, and the household rate.
- Take Home Pay Calculator — Estimate take-home pay from gross pay and the entered tax rate.
- General Calculator — Perform arithmetic with the expression, list, or operation entered.
- Tape Calculator — Add a running list of numbers and review the resulting total.
- Tip Calculator — Split a tip from the bill, tip rate, and number of people.
- Percentage Calculator — Compare two values, find their percentage change, or calculate what percent one number is of another.
- Percentage Change Calculator — Calculate percentage change from the original and new amounts.