RTools

Percentage Calculator – % of, % Change, Reverse Percentage & Discount Use this free Percentage Calculator for fast X% of Y , what percent , percent increase/decrease , reverse percentage , and discount & final price (stackable discounts + tax). Everything runs in your browser—no data saved. Contents: Percentage Calculator • Examples • FAQ Percentage Calculator X% of Y What percent? % Change Reverse % Discount & Final Price Percent (%) Of (base) Calculate Copy A (part) B (whole) Calculate Copy Original New Calculate Copy Final value % change Direction Final after increase Final after decrease ...

BMI Calculator – Body Mass Index, Category & Healthy Weight Range Use this free BMI Calculator to compute your Body Mass Index from height and weight in metric or imperial units. See your adult BMI category (WHO) , BMI Prime , and the healthy weight range for your height. Everything runs in your browser—no data saved. Contents: BMI Calculator • How It Works • Adult BMI Categories • FAQ BMI Calculator Units Metric (kg, cm) Imperial (lb, ft/in) Weight (kg) Height (cm) Weight (lb) Height (ft / in) Calculate Reset Auto-calc while typing Your BMI — — BMI Prime — BMI ÷ 25 (healthy upper bound) Healthy Weight Range — for BMI 18.5–24.9 ...

EMI Calculator – Monthly Payment, Total Interest & Amortization Schedule Use this free EMI Calculator to compute your monthly payment , total interest , and payoff date . View a full amortization schedule , add extra monthly payments , apply a one-time prepayment , and export to CSV . Everything runs in your browser—no data saved. Contents: EMI Calculator • How It Works • FAQ EMI Calculator Loan Amount Interest Rate (annual, %) Tenure Unit Years Months Start Date (optional) Used to show month labels & payoff date Prepayment & Extra Extra Monthly Payment One-time Prepayment Prepayment Month # 1 = first month Calculate Reset Download S...

Age Calculator – Exact Years, Months, Days & Next Birthday Use this free Age Calculator to find your exact age in years, months, and days. See your next birthday countdown , the weekday you were born , your zodiac sign , and the total time lived in days, hours, and minutes. Everything runs in your browser—no data saved. Contents: Age Calculator • How It Works • FAQ Age Calculator Date of Birth As of (optional) Defaults to today if empty Calculate Reset Exact Age — — Next Birthday — — Born On (Weekday) — — Western Zodiac — Time Lived — — How This Age Calculator Works Exact age (Y/M/D) uses real calendar rules (variable month lengths and leap years). Next birthday adjusts correctly for leap-da...

Word & Character Counter – Reading Time & Keyword Density Use this free Word & Character Counter to get instant counts for words , characters (with/without spaces) , sentences , paragraphs , estimated reading time , and keyword density . Everything runs in your browser—no uploads. Contents: Counter • Keyword Density • FAQ Word & Character Counter Clear Copy Text Download .txt Live update Text Count numeric tokens as words Treat hyphenated terms (e.g., state-of-the-art) as one word Keep apostrophes in words (it’s, don’t) Paragraphs split on blank lines Reading speed: WPM Words 0 Characters (with spaces) 0 Characters (without spaces) 0 Sentences 0 Paragraphs ...

Password Generator – Strong Random Passwords & Passphrases Use this free Password Generator to create strong, random passwords or memorable passphrases . Choose length and character sets, avoid look-alike characters, and view entropy and crack-time estimates. Everything runs in your browser with secure randomness. Contents: Password Generator • Passphrase Generator • FAQ Password Generator Length Character sets a–z A–Z 0–9 Symbols (!@#$…) Symbols (customize) Only used if “Symbols” is checked Filters Avoid similar (O/0, l/1, I) Require at least one of each selected set Generate Copy Show/Hide Entropy: — bits • Pool: — • Est. crack time: — Passphrase Generator Words ...

Unix Timestamp (Epoch) Converter – Epoch ↔ Date/Time Use this free Unix Timestamp Converter to convert epoch seconds/milliseconds to a human-readable date/time and back. Supports UTC , time zones , and quick copy buttons. Everything runs in your browser. Contents: Epoch → Date • Date → Epoch • FAQ Epoch → Date Epoch value Enter seconds or milliseconds Unit Seconds Milliseconds Time Zone (for display) Convert Use current epoch Auto-detects seconds vs ms if the number is very large. Date/Time: ISO 8601: Copy Local device time: UTC: Weekday: Relative: Date → Epoch Date & time If blank, use Now Interpret as Local device time UTC Convert Use Now...