Home › Utilities

Ohms Law Calc.

V PUGAZHENTHI

Wire Size & Voltage Drop

Open in App Store ↗

ZWen-GB

175 of 175 storefronts
Content in en-US

Age Rating

Years

Developer

V PUGAZHENTHI

Language

+8 More

Size

68.2

Information

Apple ID491898006

Bundle IDcom.pugazh.OhmsLawCalculator

SellerSeller

Min iOS17.6

Min macOS14.6

Device familiesiphone, ipad

Released2012-01-06

WebsiteLink ↗

Privacy policyLink ↗

Icon history 2 versions

Current

←

iPhone 10 images

iPad 10 images

What’s New Version 14

• Find calculators faster — new category chips group all 60+ calculators by purpose • Bug fixes and improvements

Description

The electrician's pocket toolkit — 60 electrical calculators and 16 converters with formulas and circuit diagrams for every calculation. Size wire, check voltage drop per NEC, convert kVA to amps, and solve Ohm's Law in seconds. No subscription. One small purchase unlocks everything, forever, on iPhone, iPad and Mac. WHY ELECTRICIANS AND STUDENTS LOVE IT • Every calculator shows the formula and circuit diagram — learn while you work • Organized by category: Ohm's Law, Wiring & NEC, Power & Phase, Motors & HP, Transformers, Reactance, Components, Energy & Light • SI and US customary units side by side • Available in 12 languages WIRING & CODE • Voltage Drop Calculator (NEC/IEEE) • Wire Size Selector (AWG & metric) OHM'S LAW & POWER • Voltage, Current, Resistance & Power Calculators • Single & Three Phase Power, Current and Power Factor • kVA ⇄ Amps (Single & Three Phase) • Neutral Current (3-Phase Unbalanced Loads) MOTORS, GENERATORS & TRANSFORMERS • Horsepower Calculators (DC, Single Phase, Three Phase) • Efficiency Calculators (DC, Single & Three Phase) • DC Generator, Transformer Voltage & Current • Star ⇄ Delta Conversions IMPEDANCE & REACTANCE • Impedance for R, L, C in any series/parallel combination • Inductive & Capacitive Reactance, Resonant Frequency • Characteristic Impedance (Parallel & Coaxial lines) COMPONENTS & ENERGY • Resistor Color Code • Series/Parallel Resistance, Inductance & Capacitance • Unknown Resistance & Capacitance (Series/Parallel) • Inductor & Capacitor Sizing, Voltage Divider • Energy Cost & Energy Storage Calculators ILLUMINATION • Luminous Intensity, Luminous Flux & Solid Angle 16 ELECTRICAL CONVERTERS Field strength, potential, resistance & resistivity, conductance & conductivity, capacitance, inductance, charge & current densities (linear, surface, volume), power — with Ohms, kΩ, Farads, Henrys, kVA, Volts, Weber and more. Download free and try the core calculators today.

In-App Purchases TM pricing

One-Time Purchases

Ohms Law Calc.—

Capabilities

In-App Purchases

Accessibility

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Version history 26 versions

Build 888043906v142026-07-10 20:01:08

• Find calculators faster — new category chips group all 60+ calculators by purpose • Bug fixes and improvements

Build 886237037v13.82026-05-28 16:50:06

Minor improvements and bug fixes to keep your calculations smooth and reliable.

Build 885070056v13.72026-04-29 19:59:55

Ohm's Law Calculator just got better — faster, smoother, and easier to solve Voltage, Current & Resistance.

Build 883252712v13.62026-03-11 23:31:24

• Fixed an issue where wire size calculation results were not displayed properly in dark mode.

Build 883018748v13.52026-03-06 03:46:35

• Stability and performance improvements

Build 876981903v13.32025-09-25 06:08:13

• Resolved a calculation error in wire sizing. • Updated voltage drop computations to comply with NEC/IEE standards for improved accuracy. • Optimized for iOS 26 with the new Liquid Glass design.

Build 875749644v13.12025-06-20 22:20:29

Fixed an issue affecting iPad users. The app should now work smoothly on all iPads.

Build 874915960v13.02025-05-28 06:24:06

Added impedance calculator tools for R, L, and C combinations in both series and parallel configurations.

Build 870774267v12.72024-12-04 16:15:16

Resolved an issue where unit changes (Ohm - kiloOhm) are not working properly in some calculations.

Build 869380396v12.6.12024-10-02 20:53:17

- added field for number of conductors in Voltage Drop Calculations. - other regular updates.

Build 868524514v12.62024-08-30 14:59:48

New design for better performance. Includes bug fixes and regular updates.

Build 865731326v12.52024-05-09 13:26:17

- Dark mode is added for a better user experience. - added new calculations for the DC electric generator. - added new calculations for Transformer.

Build 857789114v12.42023-06-13 11:17:10

regular update for improved performance.

Build 856390282v12.32023-04-17 05:42:42

fixed and issue with the energy cost calculation and others minor updates

Build 854679214v12.22023-02-01 01:18:31

Now Ohms Law App comes with more unlocked Calculations.

Build 852763053v12.12022-10-19 12:36:04

- Fixed an issue with kVA to amps Calculator

Build 852387617v12.02022-09-25 22:13:15

- Updated for IOS 15 - New user-interface for unlocking the Calculations. - Entering values in iPads made easy. Tap return key to move between text fields.

Build 847633712v11.22022-04-19 23:55:00

- new user interface

Build 847190899v11.12022-02-19 06:30:48

Added a new feature for easily unlocking all the locked Calculators in the App.

Build 845837009v11.02021-12-11 02:34:49

milliOhm ( mΩ ) conversion added to Resistance Converter. Electrical formulas are structured for readability on all 62 calculators.

Build 843113178v10.22021-07-17 16:12:56

New impedance calculators added to the App.

Build 842395748v10.12021-05-28 04:35:38

impedance calculations added to the App : - Impedance of R,L & C in series - Impedance of R,L & C in parallel

Build 842025706v10.02021-04-30 13:43:45

With downloads crossing 250K units, Ohms law Calc App is updated with better User Interface and improved performance.

Build 837273788v9.32020-08-17 15:05:24

- wire sizes in sq.mm added to Voltage drop Calculator. Two more calculations added: - Voltage Divider - RMS Voltage Calculations for sine wave, square wave, triangle wave, saw-tooth,half wave & full wave.

Build 835434897v9.22020-04-07 11:31:58

Addressed an issue, where some users are not able to restore the in-App purchases in their iPads.

Build 834731784v9.12020-02-26 18:42:47

Fixed an issue, where in some case, App crashes, while unlocking the Calculators.

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Ohms Law Calc.

Price history by region

Currency

Show Columns

Availability 175 of 175 storefronts

Region	Language	Price	Ratings	Avg	Version
US	en-US	Free	1.3k	4.7	14
GB	en-GB	Free	287	4.7	14
CN	zh-Hans-CN	Free	177	4.8	14
BR	pt-BR	Free	173	4.8	13.8
AU	en-AU	Free	168	4.6	14
CA	en-CA	Free	120	4.7	14
MX	es-MX	Free	112	4.8	13.8
IT	it	Free	96	4.7	14
CL	es-MX	Free	75	4.8	13.8
DE	de-DE	Free	74	4.3	14
ES	es-ES	Free	56	4.4	14
NO	en-GB	Free	56	4.4	14
FR	fr-FR	Free	46	4.7	14
NL	nl	Free	43	4.3	14
CH	de-CH	Free	36	4.2	14
PT	pt-PT	Free	30	4.6	14
NZ	en-AU	Free	29	4.7	14
DK	en-GB	Free	26	4.2	14
ZA	en-GB	Free	26	4.9	14
SE	sv	Free	24	4.5	14
TH	en-GB	Free	21	4.7	14
CO	es-MX	Free	20	4.9	13.8
SG	en-GB	Free	17	4.8	14
AT	de-DE	Free	16	4.6	14
CR	es-MX	Free	16	4.9	13.8
IN	en-GB	Free	15	4.3	14
AR	es-MX	Free	14	4.6	13.8
BE	en-GB	Free	14	4.5	14
IE	en-GB	Free	12	4.5	14
AE	en-GB	Free	11	4.7	14
PH	en-GB	Free	11	4.1	14
FI	en-GB	Free	10	4.0	14
EC	es-MX	Free	9	5.0	13.8
KH	en-GB	Free	8	4.6	14
MY	en-GB	Free	8	5.0	14
PE	es-MX	Free	8	5.0	13.8
SA	en-GB	Free	8	5.0	14
GH	en-GB	Free	7	4.9	13.8
DO	es-MX	Free	6	4.8	13.8
KR	ko	Free	6	5.0	14
PK	en-GB	Free	6	5.0	14
RO	en-GB	Free	6	5.0	14
BG	en-GB	Free	5	4.8	14
CZ	en-GB	Free	5	4.8	14
GR	en-GB	Free	5	5.0	14
HK	zh-Hant-HK	Free	4	5.0	14
ID	en-GB	Free	4	4.0	14
NI	es-MX	Free	4	5.0	13.8
PL	en-GB	Free	4	5.0	14
UY	en-GB	Free	4	4.3	13.8
VN	en-GB	Free	4	5.0	14
BO	es-MX	Free	3	2.7	13.8
EE	en-GB	Free	3	4.7	14
HN	es-MX	Free	3	5.0	13.8
IL	en-GB	Free	3	4.0	14
LK	en-GB	Free	3	5.0	14
SV	es-MX	Free	3	5.0	13.8
TW	zh-Hant-TW	Free	3	5.0	14
VE	es-MX	Free	3	4.7	13.8
AM	en-GB	Free	2	5.0	14
AO	en-GB	Free	2	5.0	13.8
CD	en-GB	Free	2	5.0	13.8
GT	es-MX	Free	2	5.0	13.8
HR	en-GB	Free	2	5.0	14
LT	en-GB	Free	2	5.0	14
LU	en-GB	Free	2	4.5	14
LV	en-GB	Free	2	5.0	14
NA	en-GB	Free	2	5.0	13.8
NG	en-GB	Free	2	3.5	13.8
PA	es-MX	Free	2	5.0	13.8
AL	en-GB	Free	1	5.0	14
BH	en-GB	Free	1	5.0	14
BM	en-GB	Free	1	5.0	14
BW	en-GB	Free	1	5.0	13.8
CG	en-GB	Free	1	4.0	13.8
CI	fr-FR	Free	1	5.0	13.8
DZ	en-GB	Free	1	5.0	13.8
GY	en-GB	Free	1	5.0	13.8
IS	en-GB	Free	1	3.0	14
JP	ja	Free	1	4.0	14
KW	en-GB	Free	1	5.0	14
LB	en-GB	Free	1	5.0	14
LY	en-GB	Free	1	5.0	13.8
MA	en-GB	Free	1	4.0	13.8
ME	en-GB	Free	1	5.0	14
MN	en-GB	Free	1	5.0	14
NP	en-GB	Free	1	4.0	14
QA	en-GB	Free	1	5.0	14
RU	ru	Free	1	5.0	14
SB	en-GB	Free	1	5.0	14
SI	en-GB	Free	1	5.0	14
SN	en-GB	Free	1	5.0	13.8
TN	en-GB	Free	1	5.0	13.8
AF	en-GB	Free	0	—	14
AG	en-GB	Free	0	—	13.8
AI	en-GB	Free	0	—	13.8
AZ	en-GB	Free	0	—	14
BA	en-GB	Free	0	—	14
BB	en-GB	Free	0	—	13.8
BF	en-GB	Free	0	—	13.8
BJ	en-GB	Free	0	—	13.8
BN	en-GB	Free	0	—	13.8
BS	en-GB	Free	0	—	13.8
BT	en-GB	Free	0	—	14
BY	en-GB	Free	0	—	14
BZ	en-GB	Free	0	—	13.8
CM	fr-FR	Free	0	—	13.8
CV	en-GB	Free	0	—	13.8
CY	en-GB	Free	0	—	14
DM	en-GB	Free	0	—	13.8
EG	en-GB	Free	0	—	14
FJ	en-GB	Free	0	—	14
FM	en-GB	Free	0	—	14
GA	fr-FR	Free	0	—	13.8
GD	en-GB	Free	0	—	13.8
GE	en-GB	Free	0	—	14
GM	en-GB	Free	0	—	13.8
GW	en-GB	Free	0	—	13.8
HU	en-GB	Free	0	—	14
IQ	en-GB	Free	0	—	14
JM	en-GB	Free	0	—	13.8
JO	en-GB	Free	0	—	14
KE	en-GB	Free	0	—	13.8
KG	en-GB	Free	0	—	14
KN	en-GB	Free	0	—	13.8
KY	en-GB	Free	0	—	13.8
KZ	en-GB	Free	0	—	14
LA	en-GB	Free	0	—	14
LC	en-GB	Free	0	—	13.8
LR	en-GB	Free	0	—	13.8
MD	en-GB	Free	0	—	14
MG	en-GB	Free	0	—	13.8
MK	en-GB	Free	0	—	14
ML	en-GB	Free	0	—	13.8
MM	en-GB	Free	0	—	14
MO	zh-Hant-HK	Free	0	—	14
MR	en-GB	Free	0	—	14
MS	en-GB	Free	0	—	13.8
MT	en-GB	Free	0	—	14
MU	en-GB	Free	0	—	13.8
MV	en-GB	Free	0	—	14
MW	en-GB	Free	0	—	13.8
MZ	en-GB	Free	0	—	13.8
NE	en-GB	Free	0	—	13.8
NR	en-GB	Free	0	—	14
OM	en-GB	Free	0	—	14
PG	en-GB	Free	0	—	14
PW	en-GB	Free	0	—	14
PY	es-MX	Free	0	—	13.8
RS	en-GB	Free	0	—	14
RW	en-GB	Free	0	—	13.8
SC	en-GB	Free	0	—	13.8
SK	en-GB	Free	0	—	14
SL	en-GB	Free	0	—	13.8
SR	en-GB	Free	0	—	13.8
ST	en-GB	Free	0	—	13.8
SZ	en-GB	Free	0	—	13.8
TC	en-GB	Free	0	—	13.8
TD	en-GB	Free	0	—	13.8
TJ	en-GB	Free	0	—	14
TM	en-GB	Free	0	—	14
TO	en-GB	Free	0	—	14
TR	en-GB	Free	0	—	14
TT	en-GB	Free	0	—	13.8
TZ	en-GB	Free	0	—	13.8
UA	en-GB	Free	0	—	14
UG	en-GB	Free	0	—	13.8
UZ	en-GB	Free	0	—	13.8
VC	en-GB	Free	0	—	13.8
VG	en-GB	Free	0	—	13.8
VU	en-GB	Free	0	—	14
XK	en-GB	Free	0	—	14
YE	en-GB	Free	0	—	14
ZM	en-GB	Free	0	—	13.8
ZW	en-GB	Free	0	—	13.8

Change log 133 changes · TM

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✎

releaseNotes updated

• Find calculators faster — new category chips group all 60+ calculators by purpose • Bug fixes and improvements

2026-07-11

✎

description updated

The electrician's pocket toolkit — 60 electrical calculators and 16 converters with formulas and circuit diagrams for every calculation. Size wire, check voltag

2026-07-11

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App icon changed

2026-07-11

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Size 60 MB → 68 MB

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Version changed

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2026-07-11

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Version 14 released

• Find calculators faster — new category chips group all 60+ calculators by purpose • Bug fixes and improvements

2026-07-10

✎

releaseNotes updated

Minor improvements and bug fixes to keep your calculations smooth and reliable.

2026-07-06

✎

description updated

Ohm's Law Calc. consists of 60 Electrical Calculators with Formulas and Circuits and 16 Electrical Converters. • Voltage Calculator • Current Calculator

2026-07-06

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subtitle updated

Wire Size & Voltage Drop

2026-07-06

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name updated

Ohms Law Calc.

2026-07-06

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Version 13.8 released

Minor improvements and bug fixes to keep your calculations smooth and reliable.

2026-05-28

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Version 13.7 released

Ohm's Law Calculator just got better — faster, smoother, and easier to solve Voltage, Current & Resistance.

2026-04-29

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Version 13.6 released

• Fixed an issue where wire size calculation results were not displayed properly in dark mode.

2026-03-11

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Version 13.5 released

• Stability and performance improvements

2026-03-06

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Version 13.3 released

2025-09-25

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Version 13.1 released

Fixed an issue affecting iPad users. The app should now work smoothly on all iPads.

2025-06-20

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Version 13.0 released

Added impedance calculator tools for R, L, and C combinations in both series and parallel configurations.

2025-05-28

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Version 12.7 released

Resolved an issue where unit changes (Ohm - kiloOhm) are not working properly in some calculations.

2024-12-04

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Version 12.6.1 released

- added field for number of conductors in Voltage Drop Calculations. - other regular updates.

2024-10-02

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Version 12.6 released

New design for better performance. Includes bug fixes and regular updates.

2024-08-30

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Version 12.5 released

- Dark mode is added for a better user experience. - added new calculations for the DC electric generator. - added new calculations for Transformer.

2024-05-09

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Version 12.4 released

regular update for improved performance.

2023-06-13

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Version 12.3 released

fixed and issue with the energy cost calculation and others minor updates

2023-04-17

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Version 12.2 released

Now Ohms Law App comes with more unlocked Calculations.

2023-02-01

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Version 12.1 released

- Fixed an issue with kVA to amps Calculator

2022-10-19

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Version 12.0 released

- Updated for IOS 15 - New user-interface for unlocking the Calculations. - Entering values in iPads made easy. Tap return key to move between text fields.

2022-09-25

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Version 11.2 released

- new user interface

2022-04-19

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Version 11.1 released

Added a new feature for easily unlocking all the locked Calculators in the App.

2022-02-19

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Version 11.0 released

milliOhm ( mΩ ) conversion added to Resistance Converter. Electrical formulas are structured for readability on all 62 calculators.

2021-12-11

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Version 10.2 released

New impedance calculators added to the App.

2021-07-17

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Version 10.1 released

impedance calculations added to the App : - Impedance of R,L & C in series - Impedance of R,L & C in parallel

2021-05-28

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Version 10.0 released

With downloads crossing 250K units, Ohms law Calc App is updated with better User Interface and improved performance.

2021-04-30

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Version 9.3 released

2020-08-17

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Version 9.2 released

Addressed an issue, where some users are not able to restore the in-App purchases in their iPads.

2020-04-07

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Version 9.1 released

Fixed an issue, where in some case, App crashes, while unlocking the Calculators.

2020-02-26

Information

Icon history 2 versions

Preview 2 platforms

iPhone 10 images

iPad 10 images

What’s New Version 14

Description

In-App Purchases TM pricing

Capabilities

Accessibility

Version history 26 versions

Price history by region

Availability 175 of 175 storefronts

Change log 133 changes · TM