Calculators tools
Choose a task, open the tool, and review its result. Every listing below opens a working browser interface directly.
28 tools available
EMI Calculator
Estimate monthly payments for a fixed-rate loan.
Loan Calculator
Interest & total payable.
GST Amount Calculator
Add or remove tax using a rate you enter.
SIP Calculator
Project investment growth.
BMI Calculator
Body-mass index & category.
Age Calculator
Exact age from a birthdate.
Percentage Calculator
Every percentage problem.
Discount Calculator
Sale price & savings.
Manual Currency Converter
Convert amounts using an exchange rate you supply.
Tip Calculator
Tip & split the bill.
Simple Interest
Principal × rate × time.
Compound Interest
Growth with compounding.
Aspect Ratio
Resize keeping proportions.
Trip Fuel Cost Calculator
Trip fuel & cost estimate.
Average / Mean
Mean, median, min & max.
Date Difference
Days between two dates.
Random Number
Random numbers in a range.
Dice Roller
Roll any number of dice.
FD Calculator
Fixed-deposit maturity value.
RD Calculator
Recurring-deposit returns.
Loan Amortization
Full repayment schedule + CSV.
Break-even Calculator
Units to sell before profit.
GST Invoice Generator
CGST/SGST/IGST invoice → PDF.
CGPA Calculator
10-point, credit-weighted.
GPA Calculator
4.0 scale, credit-weighted.
Attendance Calculator
Can you skip a class?
Percentage to GPA
Convert % to a 4/10 GPA.
Study Timetable Generator
Weekly study plan + CSV.