Multi Calculator
All-in-One Calculator Suite
Personal & Health
Age calculator
Enter your birthdate:
BMI calculator
Height (cm) and weight (kg):
BMR calculator
Mifflin–St Jeor equation.
Body fat calculator
US Navy method.
Pregnancy due date
Last menstrual period (LMP):
Ovulation calculator
LMP and cycle length:
Calorie (TDEE) calculator
Based on BMR × activity factor.
Ideal weight calculator
Devine formula (adults).
Step to calorie
Approximate calories from steps.
Finance & Business
Currency converter
Simple static conversion.
Loan calculator
EMI based on principal, rate, term.
EMI calculator
Monthly installment.
Mortgage calculator
Payment with down payment, taxes, insurance.
Tax calculator
Flat rate on taxable income.
Savings calculator
Future value with monthly contribution.
Investment calculator
Future value with annual compounding.
GST calculator
Add or remove GST.
Math & Education
Scientific calculator
Evaluate expression (JS Math).
Percentage calculator
Find percentage of a number.
Algebra solver
Solve ax + b = 0 or ax² + bx + c = 0.
Unit converter
Common conversions.
Square root calculator
Compute √n.
Statistics calculator
Comma-separated numbers.
Daily Life & Utility
Time calculator
Add/subtract hours and minutes.
Date calculator
Add days to date.
Countdown calculator
Time until target date-time.
Fuel calculator
Estimate fuel cost for trip.
Electricity bill calculator
Cost based on kWh and rate.
Tech & Online
Data transfer calculator
Time to transfer a file.
IP subnet calculator
CIDR IPv4 (e.g., 192.168.1.0/24).
Color code converter
HEX ↔ RGB.
Event & Custom (GN Events)
Event budget calculator
Guests × cost + extras.
Catering cost calculator
Per-item breakdown.
Venue capacity calculator
Area / space per person.
Decoration cost calculator
Stage, seating, floral, lighting.
Event profit calculator
Revenue − (catering + venue + decoration + other).
