Work · alternatives · 2026

24 alternatives to CalcBox Calculator

How to calculate percentage, square footage

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
   Percentage Calculator▲90

   The percentage calculator to make your life easier

   2021 · percentagecalc.org · its alternatives →

2. 2
   Maker Calc▲91

   Measurement calculator for people who build with their hands

   2023 · makercalc.com · its alternatives →

3. 3
   Percentages▲110

   Easy to use percentage calculator

   2019 · percentages.io · its alternatives →

4. 4
   Percentage calculator▲12

   Calculate percentage | Find percentage | Percentage formula

   2024 · visualpercentagecalculator.com · its alternatives →

5. 5
   Perfect Percentage Calculator▲17

   Calculate percentages with no cognitive load

   2025 · calculatequick.com · its alternatives →

6. 6
   Percentage Calculator▲2

   Calculate any percentage with a simple Percentage Calculator

   2020 · its alternatives →

7. 7CC
   Concrete Calculator for your weekend projects around the house▲38

   2018 · concretecalculator.io · its alternatives →

8. 8
   Square Feet Calculator▲4

   Instantly calculate area & project costs for free

   Jul 2026 · squarefeetcalculator.me · its alternatives →

9. 9
   Percentage Calculator▲4

   Instant percentage calculations with step-by-step solutions

   May 2026 · sqrtcalculator.com · its alternatives →

10. 10
    Fraction Calculator▲7

    Add, subtract, multiply, divide & simplify fractions online

    2025 · studyhub.net.in · its alternatives →

11. 11
    Easy Percentage Calculator▲7

    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 →

12. 12
    House of Calculators▲16

    Your go-to resource for various calculators.

    2024 · its alternatives →

13. 13
    Square Footage Calculator▲3

    Calculate area & material cost — 7 shapes, free, no signup

    Jul 2026 · squarefootagecalculator.online · its alternatives →

14. 14
    PercentageCalcs▲1

    A beautiful and easy to use percentage calculator

    Aug 2026 · percentagecalcs.com · its alternatives →

15. 15
    CalcForAll▲3

    Calculate anything, instantly

    May 2026 · calcforall.com · its alternatives →

16. 16
    Agent Stroy▲2

    Building materials calculator for home

    2019 · agentstroy.com · its alternatives →

17. 17
    Pro Concrete Calculator▲9

    Pro Concrete Calculator: A must-have for builders & DIYers.

    2024 · proconcretecalculator.com · its alternatives →

18. 18
    Dividend Calc▲6

    Easy Dividend Calculator

    2017 · apps.apple.com · its alternatives →

19. 19
    Free Calculators▲7

    Free online calculator

    2025 · freecalculators.app · its alternatives →

20. 20
    Percentage Calculator▲7

    Percentage increase calculator

    2025 · percentage-increase-calculator.net · its alternatives →

21. 21
    Structure Calculator▲2

    Construction & DIY calculators that estimate materials

    Jul 2026 · structurecalculator.com · its alternatives →

22. 22
    Calculatorology▲11

    Free online calculators and conversion tools.

    2020 · calculatorology.com · its alternatives →

23. 23
    Smart Percentage Calculator Online▲7

    Accurate & instant results - starlightopia

    2025 · starlightopia.com · its alternatives →

24. 24
    Modulo Calculator▲7

    Fast & accurate modulo tool online - starlightopia

    2025 · starlightopia.com · its alternatives →

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 →