Tech & Everyday Tools
Fast utilities for developers and daily users: HTML color picker, secure password & MD5 generator, word counter, and college GPA calculator.
Word & Character Counter
Count words, characters (with/without spaces), sentences, paragraphs, reading and speaking times.
Password Generator & Strength (Entropy)
Generate cryptographically secure passwords with custom character sets, ambiguous exclusion, and crack time estimates.
HEX to RGB Color Converter
Convert color codes between HEX, RGB, and HSL formats with color preview.
College GPA Calculator (4.0 Scale)
Calculate weighted Grade Point Average (GPA) on a 4.00 scale based on credit hours.
Zodiac Sign Calculator (Sun Sign)
Find your Western tropical zodiac sun sign, element, quality, and ruling planet from birth date.
Moon Sign Calculator
Discover your astrological Moon sign representing your inner emotions and subconscious mind.
Rising Sign Calculator (Ascendant / AC)
Calculate your astrological Rising Sign (Ascendant) based on birth date and exact time of day.
Natal Birth Chart Summary
Calculate your astrological Big Three (Sun, Moon, and Rising signs) and primary elemental balance.
Weighted Decision Matrix Calculator
Score and compare two alternative options objectively using a weighted multi-criteria decision matrix.
Air Conditioner BTU Calculator
Calculate required room AC cooling capacity in BTU/h and thermal kW power.
Tech & Everyday Tools What You Need to Know
All tools in Calconova are engineered with institutional financial and scientific formulas. The enterprise decimal.js engine is utilized to eliminate floating-point rounding errors typical of standard JavaScript applications.
All calculations execute directly on your local device (Edge/Client-side); none of your data is stored on remote servers, guaranteeing 100% privacy.
All calculations, amortizations, and scenario projections displayed on this page are strictly for informational and educational purposes. Nothing herein constitutes investment, financial, tax, or legal advice. Actual CPF interest rates, ABSD criteria, COE prices, and bank mortgage rates may vary. Calconova explicitly disclaims all liability for any decisions taken based upon these calculations. Consult a MAS-licensed financial adviser or IRAS/CPF officer prior to executing financial commitments.