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rCalc

Chrome Web Store listing by Nathan Campos

A Chrome extension with 116 users, barely installed. Audience over the last 30 days: -2.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
116
Rating
4.9 (7 ratings)
Users, last 30 days
-2
Rating, last 30 days
Steady over 30 days
Version
0.3.0
Updated in the store
2013-05-31
Published
2013-05-09
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
-2 since 03.10
108-130 · 18 readings
  1. 2026-10-04122
  2. 2026-10-08126
  3. 2026-10-09127
  4. 2026-10-10130
  5. 2026-10-11125
  6. 2026-10-13121
  7. 2026-10-16120
  8. 2026-10-17115
  9. 2026-10-18114
  10. 2026-10-19112
  11. 2026-10-21111
  12. 2026-10-23113
  13. 2026-10-24112
  14. 2026-10-25108
  15. 2026-10-28114
  16. 2026-10-29120
  17. 2026-10-30118
  18. 2026-11-01116
Rating
unchanged since 03.10
reviewsrating 4.86 · 18 readings
  1. 2026-10-04reviews7rating4.86
  2. 2026-10-08reviews7rating4.86
  3. 2026-10-09reviews7rating4.86
  4. 2026-10-10reviews7rating4.86
  5. 2026-10-11reviews7rating4.86
  6. 2026-10-13reviews7rating4.86
  7. 2026-10-16reviews7rating4.86
  8. 2026-10-17reviews7rating4.86
  9. 2026-10-18reviews7rating4.86
  10. 2026-10-19reviews7rating4.86
  11. 2026-10-21reviews7rating4.86
  12. 2026-10-23reviews7rating4.86
  13. 2026-10-24reviews7rating4.86
  14. 2026-10-25reviews7rating4.86
  15. 2026-10-28reviews7rating4.86
  16. 2026-10-29reviews7rating4.86
  17. 2026-10-30reviews7rating4.86
  18. 2026-11-01reviews7rating4.86
Users
-12 since 31.08
108-130 · 33 readings
  1. 2026-08-31128
  2. 2026-09-02126
  3. 2026-09-05126
  4. 2026-09-06124
  5. 2026-09-07122
  6. 2026-09-09123
  7. 2026-09-10127
  8. 2026-09-13124
  9. 2026-09-15126
  10. 2026-09-17125
  11. 2026-09-20126
  12. 2026-09-21130
  13. 2026-09-25129
  14. 2026-09-26121
  15. 2026-09-28118
  16. 2026-10-04122
  17. 2026-10-08126
  18. 2026-10-09127
  19. 2026-10-10130
  20. 2026-10-11125
  21. 2026-10-13121
  22. 2026-10-16120
  23. 2026-10-17115
  24. 2026-10-18114
  25. 2026-10-19112
  26. 2026-10-21111
  27. 2026-10-23113
  28. 2026-10-24112
  29. 2026-10-25108
  30. 2026-10-28114
  31. 2026-10-29120
  32. 2026-10-30118
  33. 2026-11-01116
Rating
unchanged since 31.08
reviewsrating 4.86 · 33 readings
  1. 2026-08-31reviews7rating4.86
  2. 2026-09-02reviews7rating4.86
  3. 2026-09-05reviews7rating4.86
  4. 2026-09-06reviews7rating4.86
  5. 2026-09-07reviews7rating4.86
  6. 2026-09-09reviews7rating4.86
  7. 2026-09-10reviews7rating4.86
  8. 2026-09-13reviews7rating4.86
  9. 2026-09-15reviews7rating4.86
  10. 2026-09-17reviews7rating4.86
  11. 2026-09-20reviews7rating4.86
  12. 2026-09-21reviews7rating4.86
  13. 2026-09-25reviews7rating4.86
  14. 2026-09-26reviews7rating4.86
  15. 2026-09-28reviews7rating4.86
  16. 2026-10-04reviews7rating4.86
  17. 2026-10-08reviews7rating4.86
  18. 2026-10-09reviews7rating4.86
  19. 2026-10-10reviews7rating4.86
  20. 2026-10-11reviews7rating4.86
  21. 2026-10-13reviews7rating4.86
  22. 2026-10-16reviews7rating4.86
  23. 2026-10-17reviews7rating4.86
  24. 2026-10-18reviews7rating4.86
  25. 2026-10-19reviews7rating4.86
  26. 2026-10-21reviews7rating4.86
  27. 2026-10-23reviews7rating4.86
  28. 2026-10-24reviews7rating4.86
  29. 2026-10-25reviews7rating4.86
  30. 2026-10-28reviews7rating4.86
  31. 2026-10-29reviews7rating4.86
  32. 2026-10-30reviews7rating4.86
  33. 2026-11-01reviews7rating4.86

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Nathan Campos. Listed website: rcalc.dreamintech.net.

Like this one

Listings the catalog judges closest in what they say they do.

  1. Resistor Color Code Describes nearly the same job audience not published
  2. Resistor Calculator Describes nearly the same job, smaller audience 5 users (last published figure)
  3. Resistor Calculator Describes nearly the same job, smaller audience 19 users ★ 5.0
  4. Ohm's Law Calculator Describes nearly the same job, smaller audience 23 users ★ 5.0
  5. Easy RC + Parallel Resistance Describes a similar job, smaller audience 12 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built