Welcome! Join us with ROBERIN!
🚀 ROBERIN
Real-time Development in Progress
ROBERIN aims to develop and share various tools that can help you. We strive to create and support easy-to-use tools through continuous development.
Featured / frequently used tools
New here? Start with the tools people use most often.
- Date Difference Calculator
- 1RM Calculator
- Daily Take-Home Pay Calculator
- BMR Calculator (Basal Metabolic Rate)
- Daily Protein Intake Calculator
- Travel Time Calculator by Distance
- Daily Caffeine Intake Calculator
- Color Harmony Generator
- CSS Gradient Generator
- Random Gradient Generator
- BABIP Calculator
- Baseball ISO Calculator
Money, taxes and pay
Income, net pay, tax, discount, budget and investment calculators.
Pay and income
Taxes and fees
Investing and savings
Budget and household costs
Housing, real estate and car costs
Home area, real-estate fee, loan and vehicle-cost tools.
Dates, time and schedules
Date differences, weekdays, anniversaries, work or school schedules and clocks.
Date calculations
Basic date math
Life dates
Age and anniversaries
Age calculations
Birthdays and anniversaries
Work and school schedules
School dates
Work time
Time converters and clocks
Time math
Time units
Current time
Health, fitness and daily life
Fitness, nutrition, metabolism, sleep, breathing and routine tools.
Body and health indicators
Body composition and metabolism
Health risk
Training and running
Strength and exercise cost
Running pace
Swimming and heart rate
Steps and stride
Nutrition and intake
Macros and protein
Intake limits
Sleep, breathing and routine
Breathing and meditation
Sleep timing
Biorhythm
Units, conversion and science
Everyday units, engineering units, math and science calculators.
Everyday unit conversions
Basic units
Temperature
Distance units
Area units
Angle units
Physics and engineering units
Pressure and force
Volume and mass
Weather and environment
Math, statistics and science
Math and statistics
Science calculations
Speed and goals
Design, color and image
Color, CSS, image editing and visual utility tools.
Color tools
Palette and harmony
Color conversion
Color analysis and quizzes
CSS and design helpers
Image editing
Basic editing
Pixel effects
Image conversion and files
Photo style
Files and resolution
Text, documents and web utilities
Text conversion, character counting and small web/dev utilities.
Text conversion
Text transforms
HTML and files
Characters and social text
Web and developer utilities
Sports and baseball
Running, swimming, baseball stats and other sports calculators.
Batting metrics
Basic batting
Advanced batting
Fielding and defense
Pitching metrics
Team and season calculators
Pets
Age and pregnancy tools for cats and dogs.
Games, random and fun
Puzzles, random pickers, emoji and lightweight fun tools.
Games and tests
Random pickers
Choice tools
Travel, movement and productivity
Travel-time and everyday productivity tools.
Travel and movement
사용자 후기
Check out the vivid stories and honest reviews from visitors to our site!
Hana Kim
PixelHive Digital Strategist
Complex tasks have become much simpler. Thanks to the intuitive design and efficiency, it has become an essential site I use daily!
Minho Lee
DataCraft Data Analyst
The tools organize complex tasks neatly. I definitely wan
Jisoo Park
BrightWorks Product Manager
The tools here are easy to use and practical. They can save time and effort, making them really useful. Highly recommended.
Yuna Choi
Freelance Illustrator
Easy and powerful features have greatly increased my work speed. Discover various features!