The Calcylator Blog

Big ideas for
everyday numbers.

Practical guides, clear examples, and smarter ways to calculate.

Loans & EMI

How to calculate EMI: a simple guide

Understand how EMI works, learn the formula, and see a step-by-step example to calculate your monthly payments with ease.

Calcylator Editorial Team6 min read

Everyday

Learn different ways to calculate age, from exact years to days, with clear examples.

Calcylator Editorial Team4 min read

Finance

See the key differences, with real examples to help you understand how interest grows.

Calcylator Editorial Team5 min read

Finance7 min read
Student Loan EMI Calculator: Grace Period and Interest
Calculate a student loan EMI after the study period: a ₹5,50,000 balance at 10% over 7 years gives about ₹9,131 a month; see how grace-period interest builds.
Finance7 min read
SWP Withdrawal Calculator: How Long Will It Last?
SWP withdrawal calculator formula showing how long a ₹10 lakh corpus lasts at different withdrawal and return assumptions, with worked examples.
Health6 min read
TDEE Calculator: Formula and Activity Multipliers
Calculate TDEE by multiplying BMR by an activity factor of 1.2 to 1.9. See a 1,500 kcal BMR at five levels and learn to choose your factor honestly.
Everyday6 min read
Time Duration Calculator: Hours Between Two Times
Time duration: turn both clock times into minutes, subtract, and add a day for overnight shifts to get exact hours and minutes.
Everyday6 min read
Time Zone Conversion: IST to UTC, US and UK
Convert time zones through UTC: subtract the source offset, add the target offset. IST to UTC, UK, US and Dubai, with a chart and worked example.
Everyday6 min read
Weeks Between Dates Calculator: Full Weeks + Days
Weeks between dates: count the days, divide by 7, and read off full weeks and extra days, with inclusive and exclusive counting explained.

Explore our free calculators and apply these concepts to your own numbers.