Calculator
How it works
La conversione da Ampere a Milliampere si ottiene moltiplicando per 1000, in accordo con la definizione SI del prefisso "milli" (m = 10⁻³).
Assumptions and conditions
This calculation is valid under the following conditions:
- Grandezze scalari reali
- Unità SI standard
This calculation is valid when: Grandezze scalari reali; Unità SI standard.
This is an informational calculation (unit conversion or physical definition). The margin of error is negligible if inputs are correct.
All inputs and outputs use SI units. Convert any values in other unit systems before entering them.
Limitations
This calculation does not apply in the following cases:
- Solo conversione numerica, non considera il tipo di corrente (DC/AC)
Solo conversione numerica, non considera il tipo di corrente (DC/AC)
Referenced standards
No specific standard (definitional formula or fundamental physical principle).
Formula source: Definizione SI: 1 A = 1000 mA (BIPM SI Brochure 9a ed.)
Application examples
Circuito elettronico 50 mA
Corrente tipica di un LED o piccolo circuito integrato
Carico domestico 2.5 A
Corrente tipica di un piccolo elettrodomestico a 230 V
Frequently asked questions
What does the Ampere to Milliampere calculator compute?
Convert electric current from amperes (A) to milliamperes (mA). Exact SI conversion: 1 A = 1000 mA.
When is this calculation valid?
This calculation is valid under the following conditions: Grandezze scalari reali; Unità SI standard.
When is this calculator not appropriate?
Solo conversione numerica, non considera il tipo di corrente (DC/AC)
How accurate is the result?
This calculator implements the standard form of the formula. Accuracy depends on the quality of the inputs provided. Source: Definizione SI: 1 A = 1000 mA (BIPM SI Brochure 9a ed.).
What is the source of the formula?
Definizione SI: 1 A = 1000 mA (BIPM SI Brochure 9a ed.)
Which parameter has the greatest influence on the result?
"Corrente (A)" is the most influential parameter: a 10% change in this input produces approximately 10% change in "Corrente (mA)".
How does the result change under different conditions?
Comparison between "Reference conditions" and "Circuito elettronico 50 mA": Corrente (mA) [mA]: decreases by 90.0% (from 500.000 to 50.000).
Technical note
1 A = 1000 mA. Utile per circuiti elettronici dove le correnti sono tipicamente nell'ordine dei milliampere.
Technical note
Corrente di sicurezza per il corpo umano: < 1 mA non percepita, 10-100 mA pericolosa, > 100 mA potenzialmente letale.
Technical deep dive
About this calculator
Convert electric current from amperes (A) to milliamperes (mA). Exact SI conversion: 1 A = 1000 mA.
Formula
mA = A × 1000
Validity conditions
This calculation is valid under the following conditions:
- Grandezze scalari reali
- Unità SI standard
Result sensitivity
The result varies significantly with changes in the following parameters:
- Corrente (A) [A]: linear sensitivity on "Corrente (mA)" (proportional, elasticity 1.00).
When this calculator does not apply
- Solo conversione numerica, non considera il tipo di corrente (DC/AC)
Technical notes
- 1 A = 1000 mA. Utile per circuiti elettronici dove le correnti sono tipicamente nell'ordine dei milliampere.
- Corrente di sicurezza per il corpo umano: < 1 mA non percepita, 10-100 mA pericolosa, > 100 mA potenzialmente letale.
Technical analysis
Method: Convert electric current from amperes (A) to milliamperes (mA). Exact SI conversion: 1 A = 1000 mA.
Reference result: Corrente (mA): 500.000 mA.
Sensitivity analysis
Elasticity: percentage change in output relative to percentage change in input (1.0 = linear).
| Input | Primary output | Elasticity | Relationship |
|---|---|---|---|
| Corrente (A) [A] | Corrente (mA) | 1.00 | linear |
Note: The result is particularly sensitive to "Corrente (A)" [A]: a 10% change produces approximately 10% change in "Corrente (mA)".
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