Do I need to sign up to use Calcgator?

No. Calcgator requires zero sign-up, no email, no account. Just open a calculator and start using it instantly.

Does Calcgator show ads?

No. Calcgator is completely ad-free. We believe free tools should actually be free — no ads ever.

What calculators are available on Calcgator?

Calcgator offers 50+ calculators across Kitchen (air fryer converter, cooking time), Home & Energy (AC size, AC cost, appliance electricity), Health (water intake, sleep cycle, screen time), and Finance (bill splitter, loan EMI, SIP returns).

Free Online Calculators — Kitchen, Health, Finance & More

Q: Are all Calcgator calculators free?

Yes, every calculator on Calcgator is 100% free to use, forever. No subscription, no hidden fees.

Q: Does Calcgator work on mobile?

Yes. All Calcgator tools are fully responsive and work seamlessly on phones, tablets, and desktops.

Kitchen Calculators

Convert oven recipes to air fryer settings, calculate cooking times and find ingredient substitutes — free kitchen calculators built for everyday cooking.

17 tools

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Oven to Air Fryer Converter

Convert any oven recipe to air fryer temp & time. 33 food presets, brand adjustments, frozen toggle, doneness selector.

Used 14,200 times this month

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Egg Substitute for Baking

Find the best egg substitute for any baking recipe. Vegan, allergy-friendly options with exact ratios and usage notes.

Used 6,800 times this month

📐

Recipe Scaling Calculator

Scale any recipe up or down instantly. Enter your servings and every ingredient adjusts automatically.

Used 9,100 times this month

🥄

Tablespoons to ml Converter

Convert tablespoons, teaspoons and cups to ml and back. Supports US, UK and metric measurements.

Used 7,300 times this month

🍽️

Restaurant Calorie Calculator

Estimate calories for restaurant meals. Build your plate from common dishes and get a quick nutrition breakdown.

Used 5,600 times this month

🎂

Egg Substitute for Cake

Find the perfect egg replacement for cakes. Covers moisture, binding and leavening needs separately.

Used 4,200 times this month

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Vegan Egg Substitute

Plant-based egg replacements for every baking need. Flax, chia, aquafaba and more with exact measurements.

Used 3,400 times this month

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Air Fry Chicken Breast Timer

Exact air fryer times for chicken breast by weight, thickness and whether it's fresh or frozen.

Used 8,900 times this month

🍛

Biryani Calories

Estimate the exact calories in your portion of biryani based on serving size and ingredients.

Used 1,200 times this month

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Litres to Glasses

Quickly convert litres of water into standard glasses to track your hydration.

Used 950 times this month

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Dal Chawal Calories

Calculate the nutritional value and calories of your homemade dal chawal.

Used 1,100 times this month

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Tbsp to Grams

Convert tablespoons to grams for precise baking and cooking measurements.

Used 2,400 times this month

🧊

Sugar Grams in Tbsp

Find out exactly how many grams of sugar are in a tablespoon.

Used 1,800 times this month

💧

ml to Grams Converter

Convert milliliters to grams based on ingredient density for perfect recipes.

Used 3,100 times this month

🧂

Salt Grams in Tbsp

Calculate the exact grams of salt in a tablespoon for seasoning accuracy.

Used 1,500 times this month

🧈

Butter Grams in Tbsp

Easily convert tablespoons of butter to grams for baking and cooking.

Used 4,200 times this month

☕

Grams in a Cup

Convert cups to grams for over 50+ common baking and cooking ingredients.

Used 8,500 times this month

Home & Energy Tools

Find the right AC tonnage for your room, calculate your AC electricity bill, compare AC vs cooler costs and track appliance power consumption.

3 tools

📐

AC Size Calculator

Find the right AC tonnage for your room. Based on area, sunlight, number of people and Indian city climate.

Used 11,800 times this month

🌀

Ceiling Fan Cost Calculator

Calculate exactly how much your ceiling fan costs to run per day, month and year based on wattage and usage.

Used 8,400 times this month

❄️

AC Electricity Bill Calculator

Calculate your AC's monthly electricity bill based on tonnage, hours of use, and local rates.

Used 3,500 times this month

Health & Lifestyle Tools

Find your ideal daily water intake, discover the best time to wake up with the sleep cycle calculator, track your intermittent fasting — free health tools built for your lifestyle.

6 tools

💧

Daily Water Intake Calculator

Find your ideal daily water intake based on weight, activity level, and climate. Includes personalised schedule.

Used 16,700 times this month

😴

Sleep Cycle Calculator

Calculate the best times to wake up or go to sleep based on 90-minute sleep cycles. Wake up refreshed.

Used 12,900 times this month

⏱️

Fasting Calculator

Track your intermittent fast with a live timer, fasting phases, eating window and health benefits.

Used 4,800 times this month

🧬

NEB Tm Calculator

Calculate melting temperature for oligonucleotide primers using NEB's nearest-neighbour thermodynamics method.

Used 4,100 times this month

🔬

Oligo Calculator

Calculate oligonucleotide properties — molecular weight, extinction coefficient, Tm and GC content instantly.

Used 3,800 times this month

💜

NA Clean Time Calculator

Calculate your NA clean time in years, months, weeks and days. Tracks all milestones and medallion dates.

Used 6,200 times this month

Finance Tools

Split bills fairly with tax and tip, calculate loan EMIs and estimate SIP returns — quick, free finance calculators for everyday money decisions.

3 tools

💸

Bill Split Calculator

Split any bill equally or by percentage between friends. Handles tips, tax, and custom splits instantly.

Used 9,800 times this month

✂️

Hairdresser Tip Calculator

Calculate exact tips for your haircut, color, or salon service. Includes options for assistants and bill splitting.

Used 1,200 times this month

🏛️

AIA Salary Calculator

Calculate AIA salary structures, deductions and net take-home pay with detailed breakdowns.

Used 2,400 times this month

General Tools

Useful everyday calculators for construction, DIY projects, and more — tools that don't fit neatly into one category but are just as essential.

4 tools

🏚️

Shed Roof Slope Calculator

Calculate your shed roof pitch, rafter length, wall heights, roof area and material compatibility — all at once.

Used 3,200 times this month

🥂

Wedding Alcohol Calculator

Figure out exactly how much alcohol to buy for a wedding — beer, wine, spirits and champagne.

Used 13,200 times this month

🔢

What's Missing Calculator

Leave one number blank in any equation and get the answer instantly.

Used 2,800 times this month

❄️

Snow Day Calculator

Predict the exact chance of a snow day at your school based on weather and region.

Used 4,500 times this month

How Calcgator works

Free, instant, and designed to make your life easier

Pick your tool

Browse by category or search for the calculator you need. 50+ tools covering kitchen, home, health and finance.

Enter your numbers

Every tool is instant — results update as you type. No submit buttons, no loading spinners, no waiting.

Share, print or save

Every result can be shared via link, printed as a PDF, or saved. No signup ever required.

Why people love Calcgator

🚀

Instant results

Results update live as you type. No submit button, no waiting.

🔒

No signup ever

No account, no email, no tracking. Just the tool.

📱

Works everywhere

Fully responsive. Works on phone, tablet and desktop perfectly.

⚡

Clean experience

Minimal distractions. Focused on speed and usability.

Are all Calcgator calculators free?

Yes — every single calculator on Calcgator is 100% free, forever. No subscription, no hidden fees, no premium tier. We believe everyday tools should be accessible to everyone.

Do I need to create an account?

Never. Calcgator requires zero sign-up — no email, no password, no account. Open any calculator and start using it immediately. Results are instant.

Does Calcgator work on mobile?

Yes! All Calcgator tools are fully responsive and optimised for phones, tablets, and desktops. Results update as you type — no submit button needed.

What calculators are available?

Calcgator has 50+ calculators across four categories: Kitchen (air fryer converter, cooking time converter, ingredient substitutes), Home & Energy (AC size, AC cost, appliance electricity, AC vs cooler), Health & Lifestyle (water intake, sleep cycle, fasting calculator, screen time), and Finance (bill splitter, with EMI, SIP and FD calculators coming soon). New tools are added every week.

How do I suggest a new calculator?

Visit our Suggest a Tool page. We add new calculators every week based on community requests.

Every calculatoryou'll ever need, free