Can I lose 10 kg in 2 months?

Two months is about 8–9 weeks, so 10 kg means roughly 1.25 kg a week — above the 0.25–1 kg per week guideline and requiring a daily deficit well over 1,000 calories, past the clinical ceiling for most people. It is arithmetically possible mainly at higher starting weights. A safer plan gives 10 kg closer to 10–20 weeks.

Can I lose 10 kg in 3 months?

Yes — three months is about 13 weeks, so 10 kg is roughly 0.77 kg a week, inside the recommended 0.25–1 kg per week range and needing a daily deficit near 850 calories. It is one of the more realistic amount-and-deadline pairings, especially if you recalculate as your maintenance calories fall.

Is 0.5 kg a week a good rate?

Yes — 0.5 kg a week sits in the middle of the recommended range and is a pace that tends to spare muscle while still making steady, visible progress. At that rate 10 kg takes about 20 weeks. It is a comfortable default for most people who are not in a hurry and want the loss to stick.

Timeline & Planning

How Long Does It Take to Lose 10 kg?

At 0.5 kg a week it takes about 20 weeks; at 1 kg a week, about 10. Set your pace below and get your exact projected goal date.

Calculate Your Plan

Current Weight

Range: 30–300 kg · up to 2 decimals

Goal Weight

Range: 30–300 kg · up to 2 decimals

Height

cmft·in

Enter your height in centimeters (e.g., 170 cm)

Age

Range: 18–100 years

Gender

Required: the BMR formula uses biological sex (male or female) as a variable, so the estimate can’t be calculated without it.

Activity Level

Planning Method

Duration

weeks

*This calculator is for informational purposes only. Please consult a healthcare professional before making any health decisions. See our medical disclaimer for more information.

Date-Based Planning

Have a wedding, vacation, or competition coming up? Select “By Duration” to enter a number of days, weeks, or months and let the algorithm reverse-engineer your required daily deficit.

The calculator will block any target duration that requires a daily deficit above 1,000 calories, and warn if the resulting intake falls below clinical minimums.

The 7,700 kcal/kg Rule

A kilogram of body fat contains approximately 7,700 calories. To lose 0.5 kg per week, you need a daily deficit of 550 calories (550 × 7 = 3,850).

Pace	Deficit/Day
0.25 kg / wk	275 kcal
0.50 kg / wk	550 kcal
0.75 kg / wk	825 kcal
1.00 kg / wk	1,100 kcal

Safe Loss Rates

Aggressive deficits lead to muscle wasting. A safe clinical guideline is to aim for losing 0.5% to 1.0% of your total body weight per week.

70 kg person:0.35 – 0.70 kg/wk
90 kg person:0.45 – 0.90 kg/wk
110 kg person:0.55 – 1.0 kg/wk *

* 1% of body weight would be 1.10 kg/wk. This tool caps the selectable rate at 1.0 kg/wk — a pace suited mainly to higher body weights. At most body weights a 1.0 kg/wk rate implies an ~1,100 kcal/day deficit, above the 1,000 kcal/day guideline, which is why it is flagged "Very Aggressive".

Reverse Dieting

When you hit your goal weight, gradually add 100–200 calories back per week until your weight stabilises. Your metabolism has adapted — jumping straight to maintenance calories causes rebound fat gain.

Quick Answer

How Long Does It Take to Lose 10 kg?

At a gentle 0.25 kg a week, losing 10 kg takes about 40 weeks; at a standard 0.5 kg a week, about 20 weeks; at 1 kg a week — the pace the planner flags as "Very Aggressive" — about 10 weeks. The maths is 10 kg divided by your weekly pace. Enter your current weight, a goal 10 kg lower, and your activity level for a specific date and calorie target.

The Timeline at Each Pace

Every timeline here comes from one piece of arithmetic: one kilogram of body fat stores roughly 7,700 calories, so 10 kg is about 77,000 calories of total deficit to work through. Divide that by a daily deficit and the common paces line up cleanly. A gentle 0.25 kg a week runs on a deficit near 275 calories a day and takes about 40 weeks to shed 10 kg. The standard 0.5 kg a week needs roughly 550 calories a day and lands at about 20 weeks. Step up to 1 kg a week — close to 1,100 calories a day — and the 10 kg are gone in about 10 weeks. To turn any pace into a specific daily calorie number you first need your maintenance figure, which the TDEE Calculator estimates for you and which sets the daily number every timeline is built on.

The 1 kg-per-Week Pace and Why It's Flagged

At 1 kg a week the daily deficit sits near or above the 1,000-calorie-a-day guideline that marks the upper end of a sensible plan, so the planner flags that pace "Very Aggressive" and asks you to acknowledge it before continuing. That rate tends to suit mainly higher starting weights, where a larger body supports a bigger deficit without dropping intake too low; the pace itself is the same arithmetic, but a heavier person has more room beneath their maintenance figure. A 0.5 kg pace covers the same 10 kg in twice the weeks and is generally gentler on muscle, which is why it stays the default. Once you have picked a pace, the Calorie Deficit Calculator shows how to build the daily gap it needs from food.

Get Your Date

The week counts above are the general shape; your own date depends on your body. Enter your current weight and a goal weight 10 kg lower, add your height, age, gender and activity level, and the planner estimates your maintenance calories with the Mifflin-St Jeor equation, applies your chosen pace, and returns a specific projected goal date plus a milestone schedule. If a pace would drive your intake below a safe floor, it caps the deficit and stretches the date rather than pretending an unsafe plan works. When you would rather set the deadline first and read off the pace it needs, the Goal Weight Calculator this page is built on runs the same maths in reverse. As the kilos come off, the Weight Loss Percentage Calculator turns them into a percentage of your starting weight and flags the clinical 5% and 10% milestones. These figures are general estimates for healthy adults, not medical advice.

Timelines use the 7,700 kcal/kg (≈ 3,500 kcal/lb) energy model of body fat (Hall et al., 2011) with maintenance estimated by the Mifflin-St Jeor equation (1990). A safe pace is 0.25–1 kg (0.5–2 lb) per week with a daily deficit up to about 1,000 kcal (NHS). Early loss includes water and glycogen; individual results vary.

CDC Assessment Guide