EMF.exposed
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EMF.exposed

Learn your EMF exposure.

EMF Exposure Analysis

Estimate your electromagnetic field (EMF) exposure from common devices and compare against international reference standards. Select your devices, adjust distances and usage patterns, and receive theoretical exposure information based on WHO and ICNIRP guidelines[icnirp-2020]. Current scientific evidence has not consistently demonstrated established adverse health effects[who-fact-sheet-2021] at exposure levels below international guideline limits. These calculations are for educational purposes only and are not medical advice.

EMF Standards Selection

Select exposure standards for each EMF field type. These standards define the reference limits used for exposure calculations.

Static Fields (DC)

Static (0 Hz)

Static magnetic fields that don't change over time

Limit: 1000 μT

Combined WHO occupational exposure limits with Earth's natural field baseline

Extremely Low Frequency (ELF)

3-30 Hz

Extremely low frequency magnetic fields

Limit: 200 μT

General public exposure limit for extremely low frequency magnetic fields

Power Frequency (AC)

50-60 Hz

Power-frequency electromagnetic fields

Limit: 0.35 μT

Balanced average of WHO, EU, NIEHS, and ARPANSA guidelines

Low Frequency (LF)

100 kHz

Low frequency electromagnetic fields

Limit: 27 μT

Public exposure limit for low frequency fields

Medium Frequency (MF)

300 kHz - 30 MHz

Medium to high frequency fields from AM radio, industrial heaters

Limit: 0.92 W/m²

Public exposure limits for medium/high frequency fields. Important for broadcast and industrial areas.

Radio Frequency (RF)

1.5-300 GHz

Radio-frequency electromagnetic fields

Limit: 10 W/m²

US public exposure limit for RF radiation. Applies to cellular networks, WiFi, and 5G technologies.

Ionizing Radiation (RAD)

>2.4 PHz

High-energy ionizing radiation

Limit: 1 mSv/year

International recommended limit for artificial radiation exposure

EMF Sources

•No Sources Selected

Select emitters you're exposed to daily

Quick Presets

Infrastructure

3 devices

Electronics

6 devices

Transportation

5 devices

Appliances

2 devices

EMF Exposure Estimates

•Theoretical Daily Calculations
View theoretical EMF exposure estimates based on your device inputs across different frequency bands.

EMF Measurement Methodology

  • Inverse square/cube law field calculations
  • Time-weighted 24-hour exposure averages
  • Position-based exposure modeling
  • Multi-band frequency analysis (DC to RAD)

Scientific Standards & Research

  • Based on ICNIRP 2020 guidelines
  • WHO exposure recommendations
  • IEEE C95.1 measurement protocols
  • Recent systematic reviews
  • Long-term epidemiological studies

Current Scientific Understanding

International health agencies report no established evidence of adverse health effects from EMF exposure below international guideline limits. Major systematic reviews have found exposure levels far below international limits in the everyday microenvironments where people spend their days.

Key Research Findings:

  • Large-scale mobile phone studies have not found consistent increased risk of brain tumors with regular use
  • 5G technology research covers frequencies similar to previous mobile technologies
  • ELF magnetic field studies report a possible association between residential magnetic-field exposure at or above 0.4 µT and childhood leukaemia, though selection bias could explain the finding
  • Children's exposure research finds limited evidence for adverse effects

Exposure Level Reference

Very Low: <25%Low: 25-50%Medium: 50-100%High: 100-200%Above Guidelines: >200%
⚠️ Important Medical & Legal Disclaimer

Not Medical Advice: This tool provides educational estimates only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult qualified healthcare professionals for personal health concerns.

Theoretical Calculations: EMF exposure calculations are theoretical models based on user inputs, device specifications, and standard physics formulas. Actual real-world exposure may vary significantly due to environmental factors, device variations and measurement conditions.

Educational Purpose Only: These estimates are for informational and educational purposes only and should not be used as the sole basis for health decisions, lifestyle changes, or medical treatments.

Scientific Understanding: Research on EMF health effects is ongoing and the consensus may evolve; see official health authorities for current guidance.

Estimates are model-based: they combine established physical laws with international safety guidelines that incorporate substantial safety factors.

Consider these educational estimates alongside official guidance from health authorities and regulatory agencies.

Scientific References

Key findings throughout are linked to hover-over citations with detailed study information and DOI links.

Note: These are educational estimates, not measurements. Current research has not consistently demonstrated established adverse health effects[who-fact-sheet-2021] from EMF exposure below international guideline limits.

Have feedback or questions? Contact us at feedback@emf.exposed

International Safety Guidelines

[ICNIRP2020] International Commission on Non-Ionizing Radiation Protection (2020)

"Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)"

Health Physics

DOI: 10.1097/HP.0000000000001210

[WHO2025] World Health Organization (2025)

"Electromagnetic fields"

WHO Health Topic Page

View Source

[HEALTHCANADA2019] Health Canada (2019)

"Limits of Human Exposure to Radiofrequency Electromagnetic Energy in the Frequency Range from 3 kHz to 300 GHz"

Safety Code 6

View Source
Systematic Reviews & Meta-Analyses

[SAGAR2017] Sagar S, Dongus S, Schoeni A, et al. (2017)

"Radiofrequency electromagnetic field exposure in everyday microenvironments in Europe: A systematic literature review"

Journal of Exposure Science & Environmental Epidemiology

DOI: 10.1038/jes.2017.13

[SIMKO2019] Simkó M, Mattsson M-O (2019)

"5G Wireless Communication and Health Effects—A Pragmatic Review Based on Available Studies Regarding 6 to 100 GHz"

International Journal of Environmental Research and Public Health

DOI: 10.3390/ijerph16183406

[KHEIFETS2005] Kheifets L, Repacholi M, Saunders R, et al. (2005)

"The Sensitivity of Children to Electromagnetic Fields"

Pediatrics

DOI: 10.1542/peds.2004-2541

[AHLBOM2000] Ahlbom A, Day N, Feychting M, et al. (2000)

"A pooled analysis of magnetic fields and childhood leukaemia"

British Journal of Cancer

DOI: 10.1054/bjoc.2000.1376

[BORTKIEWICZ2017] Bortkiewicz A, Gadzicka E, Szymczak W (2017)

"Mobile phone use and risk for intracranial tumors and salivary gland tumors - A meta-analysis"

International Journal of Occupational Medicine and Environmental Health

DOI: 10.13075/ijomeh.1896.00802
Major Epidemiological Studies

[INTERPHONE2010] Interphone Study Group (2010)

"Brain tumour risk in relation to mobile telephone use: results of the INTERPHONE international case-control study"

International Journal of Epidemiology

DOI: 10.1093/ije/dyq079

[BUNCH2014] Bunch KJ, Keegan TJ, Swanson J, et al. (2014)

"Residential distance at birth from overhead high-voltage powerlines: childhood cancer risk in Britain 1962-2008"

British Journal of Cancer

DOI: 10.1038/bjc.2014.15

[IYARE2019] Iyare RN, Volskiy V, Vandenbosch GAE (2019)

"Study of the correlation between outdoor and indoor electromagnetic exposure near cellular base stations in Leuven, Belgium"

Environmental Research

DOI: 10.1016/j.envres.2018.08.025

[LOIZEAU2024] Loizeau N, Haas D, Zahner M, et al. (2024)

"Extremely low frequency magnetic fields (ELF-MF) in Switzerland: From exposure monitoring to daily exposure scenarios"

Environment International

DOI: 10.1016/j.envint.2024.109181
Device-Specific Exposure Studies

[MADER1992] Mader DL, Peralta SB (1992)

"Residential exposure to 60-Hz magnetic fields from appliances"

Bioelectromagnetics

DOI: 10.1002/bem.2250130404

[TELL2012] Tell RA, Kavet R, Mezei G (2012)

"Characterization of radiofrequency field emissions from smart meters"

Journal of Exposure Science & Environmental Epidemiology

DOI: 10.1038/jes.2012.102

[EPRI2015] Electric Power Research Institute (2015)

"Electric Vehicle Supply Equipment (EVSE) EMF Measurement Study"

EPRI Technical Report

View Source

[NAIR1995] Nair I, Zhang J (1995)

"Distinguishability of the Video Display Terminal (VDT) as a source of magnetic field exposure"

American Journal of Industrial Medicine

DOI: 10.1002/ajim.4700280103

Methodology, sources & limits

All exposure numbers on this page are model-based estimates: they combine published emission ranges for common devices with the usage patterns you enter, then compare the result with the public reference levels published by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). Each framework the calculator leans on is covered on a reference page: the ICNIRP 2010 low-frequency guidelines, the ICNIRP 2020 guidelines, what IARC Group 2B does and does not mean, and a comparison of the calculator's standards. Device calculators use position and mode factors (for example, call position, carry position, network type); calculators with an explicit distance input apply a distance fall-off law — inverse-cube within 20 m of power lines and inverse-square beyond; inverse-square beyond 10 m of transformer stations, held constant closer in; and inverse-distance for AM transmitters. They are educational estimates — not measurements and not medical advice. Real-world exposure varies with wiring, building materials, network load and device state; to measure actual fields where you live and work, use a calibrated meter.

quotable — key numbers, ready to cite

Sources (dated)

Limits & caveats

EMF FAQ — straight answers

faq — 8 answers
What are electromagnetic fields (EMF)?
Electromagnetic fields are combinations of electric and magnetic energy produced whenever electricity moves or wireless devices communicate. They span a spectrum: extremely low frequency (ELF) fields from power lines, wiring and appliances; radiofrequency (RF) fields from phones, Wi-Fi and Bluetooth; and higher frequencies such as visible light. Fields are measured in units like microtesla (µT) for ELF magnetic fields and microwatts per square metre (µW/m²) for RF power density, and their strength falls off quickly with distance from the source.
What level of EMF is considered dangerous?
No level of everyday EMF exposure has been conclusively shown to cause harm, and no single “dangerous” number exists. Regulators such as ICNIRP publish reference levels — for example, 200 µT for power-frequency magnetic fields for the general public (ICNIRP, 2010) — thousands of times above typical home backgrounds of roughly 0.01–0.3 µT. The IARC classifies ELF magnetic fields as “possibly carcinogenic” (Group 2B) based on limited epidemiological evidence (IARC, 2002), which means the evidence is inconclusive rather than proof of safety.
Do EMF blockers, stickers and pendants work?
Most consumer “EMF blockers” — stickers, chips, pendants and similar gadgets — have no credible evidence behind them and do not measurably reduce exposure. Some phone cases can even increase radiofrequency output, because a degraded signal makes the phone transmit harder. If you want lower exposure, physics-backed options work best: increase distance from the device, use wired or air-tube headsets, and reduce talk time. Verify any product’s claims yourself with a suitable meter.
How can I measure EMF levels in my home?
Pick the meter for the field type you care about: a tri-axis gaussmeter (µT or mG) for ELF magnetic fields from wiring, panels and appliances; an RF meter (µW/m²) for Wi-Fi routers, phones and nearby cell towers; and combined electric-field meters for ungrounded electronics. Measure where you spend the most time, especially bedrooms, and take readings at different distances. Typical home magnetic backgrounds run about 0.01–0.3 µT; readings near transformers or wiring errors can be far higher.
Does distance from devices really reduce EMF exposure?
Yes — it is the most reliable lever you have. Field strength from a compact source drops off rapidly with distance (roughly with the square of the distance for many sources), so a phone on a desk, a Wi-Fi router across the room, or a speakerphone call can slash exposure compared with body contact. Moving a device even a metre away typically reduces the field where you sit by a large factor, at zero cost.
Is 5G riskier than earlier mobile networks?
5G phones and towers mostly use frequencies similar to 4G (sub-6 GHz), with some bands extending into millimetre-wave (24 GHz and above). Millimetre-wave signals penetrate the body less deeply than older bands, and regulators apply the same exposure limits across all of them. Health agencies including the WHO state there is no confirmed hazard within limits, while noting that long-term research on the newest bands is limited and ongoing; on cancer specifically, a 2024 WHO-commissioned systematic review of human studies found no association between mobile-phone use and brain cancer (Karipidis et al., Environment International, 2024). Deployed cells must comply with those limits.
Are wired or air-tube headsets safer than holding a phone?
Both move the radio source away from your head, which is exactly what exposure guidance recommends. A standard wired headset lets you keep the transmitting phone on a desk or in a bag; air-tube designs add an acoustic gap so no conducting cable runs all the way to the ear. Either way the phone usually transmits less than when held against your body. If RF exposure concerns you, a cheap wired headset delivers more real reduction than any sticker or pendant.
What do health agencies say about EMF safety?
The WHO’s position is that no adverse health effects have been confirmed within internationally agreed limits, while research continues. The IARC classifies both ELF magnetic fields (2002) and radiofrequency radiation (2011) as Group 2B, “possibly carcinogenic to humans”, reflecting limited evidence rather than established risk. ICNIRP publishes the guideline limits most national regulators adopt (ICNIRP, 2010; ICNIRP, 2020), and public-health agencies in individual countries publish their own reviews. The consistent theme: limits are wide, evidence is mixed, research is ongoing.

Per-source exposure guides

One page per common source: typical field levels with dated ICNIRP, IARC and WHO sources, how distance and usage change exposure, and — where the calculator models the source — a link that opens it with that source pre-selected.

Want to compare these estimates with the fields in your own home? The home measurement guide explains which meter measures what, the units (µT, V/m, W/m²) and one complete worked reading, with dated sources.

Do EMF blockers work? Claim checks

The FAQ above sums up our position on consumer “EMF blockers”. One page per product category expands it: the claim as the category states it, the physics of what the product would have to do, and an evidence verdict with dated sources — categories only, no named products.