Over 10 years we helping companies reach their financial and branding goals. Onum is a values-driven SEO agency dedicated.

LATEST NEWS
CONTACTS
Twitter Facebook-f Pinterest Instagram

Weight Gain Calculator

Calorie Calculator for Healthy Weight Gain

Designed for seniors & caregivers – Set your goal, get safe daily calorie recommendations.

This tool is for guidance only – please consult your healthcare provider for personalized advice.
Personal Information
Select your gender for more accurate results.
Recommended for ages 50 and above.
Physical Data
Goal must be higher than current weight.
Goal & Activity Level
How long do you want to take to reach your goal?
Be honest for best results. Movement helps metabolism!
01
01
Target Weight

Sets a realistic goal within the healthy senior-BMI band (≈23–27 kg/m²). Use this as the destination for your personalised gain plan.

02
02
Daily Maintenance Calories

Calculates baseline energy needs with the Mifflin–St Jeor equation plus an activity factor—showing how many kilocalories you burn before any surplus.

03
03
Calorie Surplus

Adds 250–500 kcal per day to support a safe gain of 0.25–0.5 kg each week. Adjust the surplus to match your chosen timeframe.

04
04
Macro Goals

Recommends around 1.2–1.5 g protein per kg body weight, with balanced carbohydrates and healthy fats, to promote muscle growth and steady weight increase.

Weight Gain Calculator

Try Our Weight Gain Calculator

Bondage Valley Care Agency’s weight gain calculator estimates the extra daily calories you need to reach a healthy goal weight within a chosen time. Older adults, family carers and our 650 + active clients can use it to plan meals, discuss targets with a dietitian and track progress alongside our Assisted and Complex Care services.

real testimonials

What They
Say About Our
Tools?

— Anna Lewis
"The weight gain calculator explained exactly how many calories Mum needs without jargon. Printing the plan for her fridge keeps us both on track and reassures the district nurse."
— Anna Lewis
Bristol
— Dr Paula Grant
"I use the calculator when adjusting meal plans for underweight patients. The Mifflin-St Jeor base and adjustable surplus give a sound starting point before I fine-tune macros in clinic."
— Dr Paula Grant
Manchester
— Geoff Carter
"Seeing a finish date for my 5-kg goal makes the process feel achievable. The weekly gain number stops me from rushing and risking indigestion."
— Geoff Carter
Leeds
— Elaine Thompson
"Instead of scribbling sums, I type weight, height and target, then paste the printed plan straight into our electronic records. Accuracy has improved and reviews run faster."
— Elaine Thompson
Glasgow
— James Patel
"Dad only knows his weight in stones and height in feet. The weight gain calculator converts everything behind the scenes, so we avoid calculator mishaps."
— James Patel
Birmingham