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Everyday Calculators Made Simple

From splitting a bill to estimating a bag of concrete — fast, accurate calculators for everyday math, dates, cooking, DIY projects, and unit conversion.

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Browse By Category

Five categories, 52 calculators, and growing.

Everyday Math

6 calculators

Tip Calculator
Split Bill
Percentage

Date & Time

14 calculators

Age
Date Difference
Add/Subtract Date

Cooking & Kitchen

4 calculators

Cups to Grams
Oven Temp
Recipe Scaler

Construction & DIY

11 calculators

Concrete
Paint
Mulch

Unit Conversion

4 calculators

Length
Weight
Temperature

Payroll & Work Hours

4 calculators

Time Card
Work Hours
Time and a Half

Health & Fitness

3 calculators

BMI Calculator
Sleep Calculator
Calorie Calculator

Automotive

2 calculators

Tire Size
Tire Life

Fun & Novelty

4 calculators

Love Calculator
Pizza Calculator
Dog Years

Popular Calculators

Jump straight into one of our most-used tools

Everyday Math

Tip Calculator

Calculate tip amount, total bill, and per-person split.

Date & Time

Age Calculator

Find your exact age in years, months, and days.

Construction & DIY

Concrete Calculator

Estimate cubic yards of concrete and bags needed for a slab.

Unit Conversion

Length Converter

Convert between inches, feet, yards, miles, and metric lengths.

Everyday Math

Percentage Calculator

"X% of Y", percent change, and percent-of calculations.

Cooking & Kitchen

Cups to Grams Calculator

Convert cups to grams (and back) for common baking ingredients.

View All 52 Calculators

Why MiniCalci?

A simple approach to everyday calculations

Quick Results

Get calculations instantly without waiting

No Signup

Use directly without creating an account

No Ads

Clean interface without advertisements

Always Accurate

Standard, well-established formulas

Common Questions

Quick answers about using the calculators

Is MiniCalci free to use?

Yes, all calculators are free. There are no hidden charges, no advertisements, and no affiliate links.

What kinds of calculators does MiniCalci offer?

Everyday math (tip, split bill, percentage, discount, GPA), date & time (age, date difference, countdown), cooking conversions (cups to grams, oven temperature, recipe scaling), construction estimates (concrete, paint, mulch, square footage), and general unit converters (length, weight, temperature, gas mileage).

Is my data stored?

No. All calculations happen in your browser. We don't collect, store, or track any information you enter.

Can I use these on mobile?

Yes, every calculator works on any device — phone, tablet, or desktop.

Do you add new calculators?

Yes, we're actively expanding the calculator library across all five categories. Check back for new tools.

Start Calculating

Free tools for everyday math, dates, cooking, DIY projects, and unit conversion.

Browse All Calculators