Calculator10 Free Online Calculators

Math · Money · Health · Word counting · Free

Simple calculator

History

🎁 Hint: there are secret codes. Try typing 1111 and press =

Scientific calculator

Trigonometric functions use degrees. Use parentheses for grouped calculations.

History

Age calculator

Type the date (e.g. 15/08/1995), or tap the calendar to pick it.

BMI calculator

Full BMI guide and calculator page →

BMI is a screening measure, not a medical diagnosis. Adult categories may not apply to children or teens.

Loan EMI calculator

Full EMI guide and calculator page →

Estimate only. Actual lender fees, taxes, and repayment terms may differ.

Percentage calculator

Zakat calculator

Full Zakat guide and nisab calculator →

This is a simple 2.5% estimate, not a religious ruling. Nisab, eligible assets, liabilities, and the relevant lunar-year conditions may affect your obligation. Consult a qualified scholar for your circumstances.

Discount calculator

Daily calorie calculator

Uses the Mifflin–St Jeor equation to estimate maintenance calories for adults. This is not medical advice and may not fit every person.

Water intake calculator

This is a rough guide only. Needs vary with climate, exercise, pregnancy, diet, and health conditions. Follow medical advice if you have fluid restrictions.

Funny calculator: Love compatibility

Just for fun. The result is a playful number made from the names, not a real measure of love, a relationship or a future. Names are not saved or sent anywhere.

Land area calculator

1 Kanal = 20 Marla. 1 Acre = 43,560 sq ft. Marla size differs by region and housing scheme, so check your property papers.

Unit converter

1 seer = 80 tola (about 933.1 g). 1 maund = 40 seer (about 37.32 kg).

GST / Tax calculator

Full GST guide and calculator page →

Gold value calculator

1 tola = 11.6638 g, 1 tola = 12 masha, 1 masha = 8 ratti. Enter the current market rate yourself; jewellery making charges and wastage are not included.

فارمولا · Math Formulas

Tap a formula to open it, read its description in your language (🌐 = opens Google Translate), and solve your own question with the Solve button.

Share Calculator10

📐 35 math formulas, 24 languages

Open the Formulas tab (فارمولا), read the explanation in your language and solve your own question on the spot.

📲 Install Calculator10

Add it to your home screen. It opens like an app and keeps working without internet after the first visit.

🧮 One place for everyday calculations

Zakat, GST, EMI, BMI, gold, land area, unit converter, age and more, all free and private on your device.

🎤 Speak your sum

On the Simple or Scientific calculator tap Speak and say, for example, "fifty plus one hundred". Pick a Classic, Golden, Dark or Pink skin from the top.

Word and character counter → · Zakat guide

Frequently asked questions

What calculators are on Calculator10?

Calculator10 offers free simple and scientific calculators, percentage, discount, age, land area, unit converter, loan EMI, Zakat, GST, gold value, BMI, calorie and water calculators, a word and character counter, and 35 math formulas with explanations in many languages.

Are my numbers and text saved or sent anywhere?

No. All calculations and word counts run in your browser. Your numbers and text are not stored or sent to our servers. See the Privacy Policy for details.

Does Calculator10 work offline?

Yes. After your first visit, the site saves its files in your browser, so the calculators keep working without internet.

How is Zakat calculated here?

Zakat is estimated at 2.5% of your net zakatable wealth, after checking the nisab threshold based on silver or gold prices you enter. This is an estimate, not a religious ruling.

How is the EMI calculated?

EMI = P × r × (1 + r)^n ÷ ((1 + r)^n − 1), where P is the loan amount, r is the monthly rate and n is the number of months.