計算ツールと変換ツール
数学、情報処理変換、金融計算のための便利なツール。
40 tools SEO-first pages Minimal client JS
計算ツール
Percentage Calculator Calculate X percent of a value instantly.
calculator math 中CPM
Percentage Change Calculator Calculate increase or decrease percentage between two numbers. calculator math 中CPM
Circle Calculator Calculate diameter, circumference, and area from radius. calculator math 低めのCPM
BMI Calculator Calculate body mass index from weight and height. calculator math 高CPM
GCD & LCM Calculator Find greatest common divisor and least common multiple for two integers. calculator math 低めのCPM
Prime Number Checker Check if a number is prime and see basic factors. calculator math 低めのCPM
Quadratic Equation Solver Solve ax² + bx + c = 0 and view discriminant and roots. calculator math 中CPM
Discount Calculator Calculate discount amount and final price. calculator finance 高CPM
VAT / Sales Tax Calculator Calculate net, tax, and gross values. calculator finance 高CPM
Loan Payment Calculator Estimate monthly loan payments and total interest. calculator finance 高CPM
Compound Interest Calculator Calculate future value with compound interest. calculator finance 高CPM
Savings Goal Calculator Estimate monthly savings needed to reach a target. calculator finance 高CPM
Break-Even Calculator Calculate break-even units and revenue. calculator finance 高CPM
Age Calculator Calculate age from date of birth. calculator math 中CPM
Date Difference Calculator Find the difference between two dates. calculator math 中CPM
Tip Calculator Calculate tip amount and split bill per person. calculator finance 高CPM
ROI Calculator Calculate return on investment percentage. calculator finance 高CPM
Profit Margin Calculator Calculate profit and margin from revenue and cost. calculator finance 高CPM
Markup Calculator Calculate selling price from cost and markup percentage. calculator finance 高CPM
Hourly to Salary Calculator Convert hourly pay to weekly, monthly, and annual salary. calculator finance 高CPM
変換ツール
Binary to Decimal Converter Convert binary numbers to decimal values.
converter informatics 中CPM
Decimal to Binary Converter Convert decimal numbers into binary representation. converter informatics 中CPM
Hex to Decimal Converter Convert hexadecimal values to decimal. converter informatics 中CPM
Decimal to Hex Converter Convert decimal values to hexadecimal. converter informatics 中CPM
Text to Base64 Encoder Encode plain text to Base64. converter informatics 中CPM
Base64 to Text Decoder Decode Base64 into plain text. converter informatics 中CPM
Unix Timestamp Converter Convert Unix timestamps to UTC and local date/time. converter informatics 中CPM
Temperature Converter Convert between Celsius, Fahrenheit, and Kelvin. converter math 中CPM
Length Converter Convert between mm, cm, m, km, in, ft, yd, and mi. converter math 中CPM
Weight Converter Convert between mg, g, kg, oz, and lb. converter math 中CPM
Speed Converter Convert between km/h, mph, m/s, and knots. converter math 中CPM
URL Encoder Encode text for safe use in URLs. converter informatics 中CPM
URL Decoder Decode percent-encoded URL text. converter informatics 中CPM
Formatter (Formatting)
Generators
UUID Generator Generate one or more UUID v4 identifiers.
generator informatics 中CPM
SHA-256 Hash Generator Generate a SHA-256 hash for text input. generator informatics 中CPM
Slug Generator Convert text into SEO-friendly URL slugs. generator informatics 中CPM
Password Generator Generate secure random passwords in the browser. generator informatics 中CPM