nowfound

Dev tools · alternatives · 2026

24 alternatives to Ratias Percentage Calculator

Fast, ad-free and multi-language percentage calculator.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Numi▲584

    A beautiful calculator app for Mac

    2015 · numi.app · its alternatives →

  2. 2

    I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written. Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too. [1] https://automerge.org/

    2022 · numpad.io · its alternatives →

  3. 3

    Calculate percentages in a neumophic and efficient interface

    2021 · pourcentag.es · its alternatives →

  4. 4
    Off Of▲90

    A Simple Percentage Calculator for iOS

    2014 · its alternatives →

  5. 5
    Calcul.io▲127

    Math playground - smart online calculator

    2024 · calcul.io · its alternatives →

  6. 6
    CalPal▲105

    I built this using React/Next.js. The parsing logic uses [library/custom regex]. Added Gemini API support so users can generate budget templates dynamically. No ads, just a tool.

    Jan 2026 · trycalpal.app · its alternatives →

  7. 7
    Hissab▲108

    Hissab is a strict, unit-aware natural-language calculator for exact units, dates, finance, developer math, and AI-agent workflows. Free, open-source, and installable.

    2023 · hissab.io · its alternatives →

  8. 8

    Instantly calculate % of a number, percent change, increase/decrease, discounts, tax, and tips. Fast, free, no sign‑up. Click any result to copy.

    Dec 2025 · percentset.com · its alternatives →

  9. 9

    Instant percentage calculations with step-by-step solutions

    May 2026 · sqrtcalculator.com · its alternatives →

  10. 10

    Features: Natural language math: percentages, units, currencies Live exchange rates (152 currencies + BTC) Vim keybindings (Normal/Insert modes, hjkl, dd, etc.) Variables and running totals Syntax highlighting Stack: Ratatui + Pest (PEG parser) + Tokio Install: # macOS brew tap nasedkinpv/tap && brew install numr # Arch yay -S numr GitHub: https://github.com/nasedkinpv/numr Would love feedback on the code structure—it's a workspace with separate crates for core, editor, TUI, and CLI.

    Nov 2025 · github.com · its alternatives →

  11. 11

    Calculate percentages with no cognitive load

    2025 · calculatequick.com · its alternatives →

  12. 12

    Percentages calculator designed with simplicity.

    2019 · apps.apple.com · its alternatives →

  13. 13

    Simple percentage calculator: work out X% of Y, one number as a percentage of another, and percentage increase or decrease. Free, fast, no sign-up.

    2025 · easypercentcalculator.com · its alternatives →

  14. 14

    Calculate any percentage instantly – clean, simple, free

    2025 · percentkit.com · its alternatives →

  15. 15

    100+ free Portuguese calculators for finance, taxes& health

    Mar 2026 · calculacentro.com · its alternatives →

  16. 16

    Simple, free and fast. Check foreign rates in a tap.

    2025 · apps.apple.com · its alternatives →

  17. 17

    Accurate & instant results - starlightopia

    2025 · starlightopia.com · its alternatives →

  18. 18

    Calculate discounts, sale prices & savings instantly

    Jul 2026 · percentoffcalculator.org · its alternatives →

  19. 19

    Free salary & percentage calculators currency auto-detection

    Jul 2026 · calcdeck.net · its alternatives →

  20. 20

    Calculate any percentage instantly — free

    May 2026 · percentfast.com · its alternatives →

  21. 21

    Free tool to calculate your startup's burn rate in seconds

    2024 · angelmatch.io · its alternatives →

  22. 22

    Free Online General Weighted Average Calculator

    2025 · mycalsuite.com · its alternatives →

  23. 23

    Calculate X % of Y, percent change, increase/decrease – fast

    2025 · percently.io · its alternatives →

  24. 24

    Hello, I just launched a new tool on Universal-Calculator.com — a clean, fast, and free Loan Calculator to help anyone estimate monthly payments, interest costs, and total loan repayments. Key Features: Supports personal, home, car, student, and business loans Calculates monthly payments, total interest, and amortization Built with vanilla JS + TailwindCSS for performance Fully mobile responsive and zero ads No data tracking, just a simple and fast tool Why I built it: Most online calculators are either bloated with ads or unintuitive. I wanted something that just works — fast,…

    2025 · universal-calculator.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →