Zoven

Calculators - 21 Free Online Tools

Numbers you should not do in your head. The calculators below cover finance (loans, mortgages, tax, compound interest), health (BMI, calories, body fat), school (GPA, grades) and everyday splits (tips, discounts, percentages). Each one shows its working so you can sanity-check the result, not just copy it.

All calculators

• Tip Calculator - Calculate tips, split bills, and gratuity for restaurants
• BMI Calculator - Body mass index calculator for health and fitness tracking
• Percentage Calculator - Calculate percentages, ratios, and percent change online
• Age Calculator - Calculate exact age, days until birthday, and age difference
• Loan Calculator - Calculate monthly loan payments, interest, and amortization
• Mortgage Calculator - Calculate monthly mortgage payments and home affordability
• Compound Interest - Calculate compound interest for savings and investments
• Discount Calculator - Calculate sale prices, discounts, and percentage off deals
• GPA Calculator - Calculate GPA, cumulative grade point average for college
• Grade Calculator - Calculate final grades, weighted averages, and test scores
• Fuel Cost Calculator - Calculate gas costs, fuel economy, and trip fuel expenses
• Calorie Calculator - Calculate daily calorie needs, TDEE, and BMR for diet
• Body Fat Calculator - Estimate body fat percentage using measurements
• Ideal Weight - Calculate ideal body weight for your height and frame
• Pregnancy Calculator - Due date calculator, pregnancy week tracker, conception date
• Ovulation Calculator - Track fertility window, ovulation dates, and fertile days
• Pace Calculator - Calculate running pace, speed, time, and race predictions
• Sleep Calculator - Calculate optimal sleep times and wake up refreshed
• Water Intake - Calculate daily water intake needs for hydration
• Moving Average - Calculate simple and exponential moving averages for data series
• VIN Decoder - Decode Vehicle Identification Number to specs

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