aproximadamentevsmás o menos
/ah-prok-see-MAH-dah-MEN-teh/
/MAHS oh MEH-nohs/
💡 Quick Rule
Aproximadamente = formal & precise estimate. Más o menos = casual guess & 'so-so'.
Think: 'Aproximadamente' for an 'A-plus' paper (formal). 'Más o menos' for 'more or less' chatting with friends.
- In very casual speech, 'más o menos' can sometimes replace 'aproximadamente', but you can't use 'aproximadamente' in a formal setting when you mean 'so-so'.
📊 Comparison Table
| Context | aproximadamente | más o menos | Why? |
|---|---|---|---|
| Estimating Time | El vuelo dura aproximadamente 3 horas. | Nos vemos en 3 horas, más o menos. | 'Aproximadamente' is for official schedules. 'Más o menos' is for casual plans. |
| Estimating Cost | El presupuesto es de aproximadamente $5,000. | Me gasté $50, más o menos. | 'Aproximadamente' is for formal budgets. 'Más o menos' is for everyday guesstimates. |
| Answering 'How was it?' | (Not used this way) | ¿Te gustó la película? - Más o menos. | Only 'más o menos' can be used to mean 'so-so' or 'it was just okay'. |
| Context | Un informe científico, un presupuesto. | Una conversación con amigos. | The context is key: 'aproximadamente' is formal and written, 'más o menos' is informal and spoken. |
✅ When to Use "aproximadamente" / más o menos
aproximadamente
Approximately, roughly (used for more precise estimations, often in formal or written contexts).
/ah-prok-see-MAH-dah-MEN-teh/
Formal or written estimates
El proyecto costará aproximadamente un millón de euros.
The project will cost approximately one million euros.
Scientific or technical data
La distancia es de aproximadamente 50 kilómetros.
The distance is approximately 50 kilometers.
Official schedules or plans
Tardaremos aproximadamente una hora en llegar.
It will take us approximately one hour to arrive.
más o menos
More or less, so-so, kind of (used for casual estimations and expressing mediocrity).
/MAHS oh MEH-nohs/
Casual, informal guesses
Llego en diez minutos, más o menos.
I'll be there in ten minutes, more or less.
To mean 'so-so' or 'okay'
¿Cómo estás? - Más o menos.
How are you? - So-so.
Expressing general vagueness
Cuesta veinte euros, más o menos.
It costs twenty euros, more or less.
🔄 Contrast Examples
With "aproximadamente":
El tren llegará aproximadamente a las 10:00.
The train will arrive at approximately 10:00.
With "más o menos":
Llegaré a tu casa a las 10, más o menos.
I'll get to your house around 10, more or less.
The Difference: 'Aproximadamente' sounds official, like a train schedule. 'Más o menos' is casual and signals you might be a little early or late.
With "aproximadamente":
La reparación costará aproximadamente 300 euros.
The repair will cost approximately 300 euros.
With "más o menos":
Creo que me costó 300 euros, más o menos.
I think it cost me 300 euros, more or less.
The Difference: 'Aproximadamente' sounds like a formal quote from a business. 'Más o menos' sounds like you're trying to remember a price you paid.
With "aproximadamente":
La encuesta se realizó a aproximadamente 1,000 participantes.
The survey was conducted with approximately 1,000 participants.
With "más o menos":
En la fiesta había como 50 personas, más o menos.
There were like 50 people at the party, more or less.
The Difference: 'Aproximadamente' is used for data and formal reports. 'Más o menos' is for a casual headcount you'd tell a friend.
🎨 Visual Comparison
Split-screen contrasting a formal, scientific setting for 'aproximadamente' with a casual chat for 'más o menos'.
'Aproximadamente' is for formal, precise estimates. 'Más o menos' is for casual guesses and 'so-so' feelings.
⚠️ Common Mistakes
—¿Cómo estás? —Aproximadamente.
—¿Cómo estás? —Más o menos.
'Aproximadamente' is only for estimations of quantity or time. To say you're feeling 'so-so', you must use 'más o menos'.
En el informe, escribí que las ventas crecieron más o menos un 5%.
En el informe, escribí que las ventas crecieron aproximadamente un 5%.
'Más o menos' is too casual and vague for a formal report. Use 'aproximadamente' to sound more professional and precise.
📚 Related Grammar
Want to understand the grammar behind this pair? Explore these lessons for a deep dive:
🏷️ Key Words
✏️ Quick Practice
Quick Quiz: Aproximadamente vs Más o menos
Question 1 of 3
A scientist is publishing a paper. Which sentence is appropriate? 'La temperatura aumentó ___ dos grados.'
🏷️ Tags
Frequently Asked Questions
Can I always use 'más o menos' instead of 'aproximadamente'?
In casual conversation, yes, you often can. People will understand you. However, you cannot do the reverse. In any formal, written, or professional context, you should always choose 'aproximadamente' to sound more precise and educated.
Are there other words for 'approximately' in Spanish?
Yes! Two very common ones are 'alrededor de' (around) and 'cerca de' (close to). For example, 'Cuesta alrededor de 50 euros' (It costs around 50 euros). These are also great options for everyday speech.
Why can't I use 'aproximadamente' to say 'so-so'?
Because 'aproximadamente' is strictly about numbers and quantities—it means 'close to a specific amount'. 'Más o menos' has a second, completely different meaning of 'of medium or mediocre quality'. Think of it as two different words that happen to be spelled the same.

